Big phones and small tablets are en vogue but the iPhone and iPad are still stuck with a 3.5-inch and 9.7-inch screen. Apple won't make something in the middle for you so take it upon yourself and strap on a magnifying lens case to your iPhone.
Nulogia's Tarsier 2.0 is a flat lens that hangs over the iPhone and magnifies the iPhone screen to about 6 inches big. Not shabby! Of course the damn thing is unwieldy but the added screen size could be incredibly helpful for those with old eyes and for use as a stationary reading tablet. $25 [Shapeways via Wired]