Editing 2831: xkcd Phone Flip (section)

===Left column features===

; Exfoliating screen
: A term commonly found on lotions and facial products, "exfoliating" means removing dead skin cells from the surface of the skin, in order to improve its appearance. This could mean that it will exfoliate the user's skin when pressed to it.  However, this would probably require a mildly abrasive and/or adhesive screen texture or coating, which are usually not desirable qualities of a touchscreen. A different reading is that the screen itself exfoliates, i.e. slowly disintegrates. Unless the phone is an organism able to regrow exfoliated surfaces, this will eventually lead to the screen's disappearance, not an improvement of its appearance. 

; Orthotic shape for arch support
: {{w|Orthotics}} are devices used to reduce stress on the body. "Arch support" is a specific term referring to padded inserts designed to fit to the contour of a person's foot and provide support for the arch of the foot, a raised area between the ball in front and the heel in back. Fitting this space requires either a curved shape or one that's thicker in the center, which would usually make a phone less straightforward ([[No Pun Intended|pun not intended]]) to use. (This assumes, of course, that the foot is shaped like a "normal" human foot.) Additionally, the materials used in a phone are not typically suitable for orthotic usage and doing so could worsen any issues and damage the phone from the stress of the person's weight upon it. However, it's possible that in this context, the phone is ergonomically shaped to fit the way that the typical hand arches around it. In the context of a smartphone, "Arch support" may also mean support for installing {{w|Arch Linux}}.

; Single big pixel	
: A joke about how phones advertise how many pixels they have, not how few. Typical phone displays use many small {{w|pixels}}, each with relatively few display states.  For instance, each pixel can show a uniform color.  It would be difficult to make a useful display with a single pixel of this sort.  Some displays use smaller numbers of more complicated picture elements (e.g., each element could show a letter, like a {{w|split-flap display}}, or a {{w|nixie tube}}).  To make a useful display with one pixel means that element needs a different display state for every image the phone can show (like a {{w|carousel slide projector}}, {{w|movie projector}}, or {{w|gobo (lighting)|gobo}}). This may also be a joke on "{{w|Megapixel}}". 

; Ready to eat
: A typical sales pitch for {{w|convenience foods}} denoting that no time must be spent preparing the product for safe consumption, in contrast to other such meals where ingredients would need to be combined and/or cooked in some fashion. It is unknown how a phone could be produced in such a way as to be edible (perhaps the display could use {{w|sugar glass}}), but in any case, it seems likely that eating it would limit its future usefulness as a phone.{{Citation needed}} An alternative interpretation is that the phone is alive and all ready to begin consuming its prey, whatever that may be.

; Hypoimmunogenic
: Meaning less able to produce an immune response - so perhaps useful in that people do not want their phone to cause an immune response in their body, although cell phones typically cause no immune response. This is probably related to items that are marketed as hypoallergenic, less likely to cause an allergic reaction. It may also be a reference to persistent unsubstantiated claims that radio waves from mobile phones cause cancer and other disorders.

; Up to 50% more
: A play on the words "Up to 50% more <product>". Although considering that there is no mention of what product there could possibly be 50% more of (or 0% extra, as that is ''also'' less than or equal to 50%), this statement is useless. See [[870: Advertising]].

; Full-spectrum backlight optimized for plant growth
: {{w|Full-spectrum light}}s and backlights are typically used to increase {{w|color rendering}} accuracy, especially important in photography, art, and printing.  It typically refers to the part of the spectrum people can see.  Plants respond to some wavelengths outside our visual spectrum (e.g., UVA), and are less influenced by some portions of the visual spectrum (e.g. green, hence mostly reflecting such light).  A backlight optimized for plant growth would not provide a very natural appearance to our eyes and typically appear pink.  The screen backlight is unlikely to be used for growing plants.  One scenario in which this would be an advantage is at the end of the phone's useful life; instead of being recycled, it could be repurposed as a light in a greenhouse.

; Long-lasting main sequence battery
: Perhaps referring to a "{{w|main sequence}}" star (Dwarf stars, like the {{w|Sun}}, where main energy generation is hydrogen fusion). Such stars spend a long time in this phase of evolution.  This might also explain SPF 15 and full-spectrum backlight.  Stars do last a long time compared to most cell phone batteries.{{Citation needed}} This feature might be a reference to [[1422: My Phone is Dying]].

; Break glass to access apps
: A play on how emergency paraphernalia such as fire alarms and extinguishers are protected by glass casings in most places. The idea of this is to discourage removal of these items except in an emergency situation. It would not be helpful in the case of smartphone apps, which are frequently used. Presumably you would have to replace the glass each time you use an app, which is likely to prove tedious and expensive. Unusual things behind glass is also mentioned in [[1634: In Case of Emergency]]. Could also refer to the process of Jailbreaking a smartphone, such as an iPhone, to allow the install of 3rd party apps from an alternate app store.