As you can see, they have different strengths and weaknesses, some of which will become more clear in the coming months as we learn more about each tablet. (That Dell Mini 5 is especially inscrutable right now.)
The iPad has the most storage, cheap 3G, the time-tested iPhone OS and its mountain of apps, and a serious amount of Apple marketing juice behind it. But it's also famously lacking features common to the other tablets, such as webcam and multitasking. The Notion Ink Adam is perhaps the most interesting of the bunch, with its dual-function transflective screen from Pixel Qi: It can be either a normal LCD or, with the flick of a switch, an easy-on-the-eyes reflective LCD that resembles e-ink. Its hardware is also surprisingly impressive—but it remains to be seen if Android is really the right OS for a 10-inch tablet.
The Dell Mini 5 and forthcoming Android edition of the Archos 7 tablet are two of a kind, almost oversized smartphones in their feature sets. Is an extra two or three inches of screen real estate worth the consequent decrease in pocketability? Perhaps not. And finally, there's the maligned JooJoo, formerly the CrunchPad, a bit of an oddball as the only web-only device in the bunch. It doesn't really have apps, can't multitask, and pretty much confines you to an albeit fancy browser, sort of like Chrome OS will. The JooJoo is also the only tablet here to have no demonstrated way to read ebooks.
