also, mups: in my opinion, reading comics on anything less than an ipad-sized screen is kinda

you have to zoom in all the time, or read in landscape mode, i had an android craptablet once and at that size reading comics wasn't a great experience
if you are mainly going to use a tablet to read comics i would pick up one of the android honeycomb tablets out right now, like the acer iconia or asus transformer, those have 16:10 1280x800 screens, which is almost the perfect size for a comic page, and you can get some pretty sweet deals on factory refurbs if you check around