I have recently stumbled upon this tablet market in my quest for a nice ebook/pdf reader. I had initially been looking into the Kindle, though after seeing how slow the screen responce is and how limited the device was I started looking else were.From the snooping about that I have done over the past couple of days I think an Android tablet will suite my needs perfectly. The primary function of this unit will be to read books and primarily .pdf documents. With these devices being in a similar price range to the Kindle they seem like a MUCH better solution as I would be able to do a host of other tasks as well if i needed to.Now it comes down to choices... and there happens to be alot of them as im sure you are all aware. I think that I have it narrowed to a couple choices, Price doesent really matter... though i dont want to be throwing money away on this thing...The choices that I have it narrowed down to are;Moonse E7001 - Rockchip APadMoonse FE7001/Moonse E7002 - whatever you call it, the Telechips APadWitstech A81-E - Havent been able todig much up on this oneZenithink ZT-180- I know it has a diffrent CPU and a bunch of controversy but tht doesent really matter to me.Now my qestions about the devices. How much better is the Telechips CPU over the Rockchip? The Cortex in the wits over the Telechip/Rockchip? Or the mystery chip in the Zenithink?Is Android 2.1 (I hear that the wits will be updatable to 2.2) a huge improcement over 1.5/1.6? Or does it perform similarly on the faster hardware?What is the batery life like on these devices? I would like to see 3+ hours out of whatever device I end up getting, more would be nice though (closer to 5?)I havent been able to find much concreate info on battery life, or comparison in performance.Hoping that you guys can give me some more information, and help me pickout one or two devices.I'm looking for rough estimations on the cpu speed percentage faster over the other chips, etc.