As stated, the external power supply to recharge is annoying, but so is having to use the special cord that the Samsung tablet come with. (Which I also own).
3 things that this has over the Samsung: USB ports, mini-HDMI port, PLUS is able to use micro SD & SDHC cards up to 32GB in size. It may be a bit heavier and larger, but it runs as fast (or faster!) and Samsung has stated they will stop support of their 1st gen. tablets when the 2nd gen. comes out.
So far, all tablets connect via wifi (that are in this price range at least). If you have a 2G, 3G or 4G, you can give your tablet access to the internet, though it is a bit slower than wifi, so no downloading apps or updates unless you have a good bit of time on your hands. (32MB-not GB- download took 45 minutes on a 3G download link - for me, at work).
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