Gmail optimization

yes u can backup ur data. Gmail makes one drive online to save ur data.

Gmail is a very good tools for us , at least, I think so.No I use it to got/send e_mail, and Update File, And ust gtalk to communicate with my friends and workers. gmail's file backuping fuction is very useful, you can upload the file to the internet and got it again wherever you want ,of course, you must can connect the net. I usually use the gmail file fuction to save my "txt""excel""world" files, I think Gmail support the Excel's format very good, and also you can open the file online, if your rate of net is enough fast, it's a very convenient function! The other functions you can see the help message online,May you have a good try!