Hello everyone, i am currently doing my grade thesis in business and i am required to propose and implement a solution to a problem for real company. The company does physical recounts for other companies and currently they use paper as platform. My idea was to provide the workers with android tablets with preloaded excel files and have them just input the number of products they count. So far its easy but i have a series of problems regarding the selection of the tablet suited for this job and the excel-like app they should buy. I wanted an opinion on which tablet should i buy and what app should they get, all of this based on the next criteria. The tablet should have 3g connection to be able to send files to the headquarters, the second requirement should be that the tablet should be able to function for 8hs non stop (external power banks not excluded) , note that 3g will be only turned on to send files for a while so the 8hs battery life requirement are not with 3g on. I thought of the Nexus 7 coming with 3g that has 9.5 hs. advertised battery life (please confirm this is with nonstop usage), but please recommend yourselves. The excel app is more tricky as it should not affect the efficiency of the workers doing the recount. I have investigated and found some feature that i would like if possible the app to have. The first one and most important is a Tab key of some sort so the navigation from cell to cell is more simple than touching every cell separately to edit its content, google docs spreadsheets has this feature in the form of the "Next" and "Previous" buttons above the keyboard but is out of question as google docs requires constant internet connection to function and that would drain the battery. The second requirement, is on the keyboard, the data these workers will be putting in these spreadsheets is only numbers, i have found that (please don't hate) an iphone-dial-keyboard-like would be the most efficient way to input this data. Now i know this last requirement would be almost impossible to fulfill by any market app (don't loose anything asking) but i want to know would it be difficult to program ? can i edit market apps ? Any recommendation and/or critic is more than welcome, speak your mind. Again thanks to everyone!