First of all, sorry for my English. I want to buy a tablet to work. My case is a bit complicated because I do everything a little and I'm sick of carrying 20 000 papers, computer, calculator, ... I read in forums and in the end you get a mess, since it is difficult to assess without some comments user experience. At the level of PC user I do not need help, I need a DONKEY GUIDE. I tell you briefly the possible uses that I want to give. Office. 50% of the time. Mail and calendar. Business trip. 35% of the time. Mail, Calendar, Edit, download documents (Word, Excel, pdf, ... some are larger), connection to my server to access the program budget (the server works on Windows and now I do it with TERMINAL SERVER ) and CRM a future. Here I need A good battery and the screen looks good outside. Star up industrial plants. 15% of the time. Same as above but also see planes in autocad and connect via wifi or internet to the PLC of the plant. I have data phone (Samsung Galaxy S) and they told me not to buy a 3G connection that I can use the phone. Some people recommended I buy a cheap one to explore the possibilities, but as I have no clear opportunities to explore and I'm always the risk of buying an underpowered computer that does not allow me to do some things. I hope your comments. Thanks in advance.