The user guides for the Sony Xperia E1 and Xperia E1 dual are now live. The manuals should help answer any questions you may have on the handset. The manuals sit at around 99 pages. You can download the English manual below, user guides for other languages can be downloaded here for the Xperia E1 and here for the Xperia E1 dual.
Xperia E1 manual
Xperia E1 dual manual