I received my TP2 tablet for work today. I like the size and build quality, but I discovered a serious flaw. The USB port on the tablet will only accept a USB thumbdrive and not an external USB HDD or an external USB DVD/CD drive. I was going to install Office 2010 and after plugging in the non-powered DVD drive realized the TP2 was not reading it. The same thing happened when I tried my Seagate USB HDD. Both of these devices work with the Samsung 500t, 700t, ASUS 810 and the Envy x2. I contacted Lenovo tech support and sure enough, the TP2 does not have the power to run these external devices. I was told the only way they would work is if the TP2 is docked in the $100 external desktop dock and the external devices would have to run through that. I also tried to plug in my ThinkPad USB keyboard and that doesn't work either. What good is a built in USB port if it can only be used for a thumbdrive? This is an absolute deal breaker for my company because we would need to connect to these type of external devices in the field and there is no way we are lugging that huge desktop dock around just to use simple USB peripherals. Ours are going back and we will have to decide on a different tablet. Certainly Lenovo tech support could be wrong, but we have tested on several tablets and no go. I can't even load Office because there aren't any desktop docks in stock to order anyway. Hopefully you guys are having better luck, but if you haven't tried to connect these types of external devices and will need the capability I would suggest testing it now before your return Window runs out.