I am using ONYX M92 from ArtaTech (www.onyx-boox.com
) and it comes with preinstaled software for cloud sync with GMAIL (google drive). Just one click and you can sync any file from anywhere with your M92 using WiFi. It works realy good, and I using this options on daily basis. Regarding reading scientific paper, I think that ONYX M92 is very god options.