LG is working on its new windows phone 7 handset E700 as per the leaked User agent profile from the LG website. LG has already released three Windows 7 phones LG Optimus Quantum, LG E900 Optimus 7 and LG Quantum last year and yet to release LG GW910.
According to the leaked UA profile LG E700 will have 480×800 screen and Internet Explorer 9 browser. Since there is a rumor that IE9 will be included in the next windows phone 7 Mango update, this phone might release during the same time and come with the updated Windows Phone 7 OS.
These are just basic details about the device and the name E700 might be just a code name.