The iPad looks alright, but the Calculator Boy is a magical device in a class of its own. Along with its built-in (non-virtual) keyboard and insane battery life, it offers a wide range of useful and entertaining apps: addition, subtraction, multiplication, division, boobless, etc.
Also, its 3G support isn’t tied to any carrier, so you won’t have to depend on AT&T’s shoddy network for your data plan. Day one purchase, y’all.
[Update: I noticed some people calling this a mod; it’s actually a real product that a company called Playthings sold years ago.]
See also: The original Mario Calculator handheld
[Via Alexis Sepúlveda]