I decided to buy Android tablet.Ideally it would have:* 3G GSM modem (SIM card slot)* wifi* resolution 1024x600 (or higher)* GPS* decent screen* (micro)SD card support or USB port (pendrive)* price < $300Viewsonic Viewpad 7 is nice but bit too slow and 800x480 only.Advent Vega is great and cheap but no built-in 3G. Any recommendations?