What has changed in N11(from e-yes):

- New Gapps preinstalled (market should be downloaded automatically after login to google account)
- USB Mass Storage support
- Wi-Fi RSSI fixed (signal strength icon in status bar)
- Video playback (youtube, mediaplayer) fixed
- Ofono 0.44
- ElectronBeam effect

Known issues:
- Market fix wouldn't work anymore
- su doesn't work (will be fixed in final version; you could use gingerbread_superuser.tar.bz2 as quick fix for this version)
- DHCP problems on Wi-FI connection. With buggy APs only.

In my own experience I have to say that there are less random reboots, internet over the cellular network doesnt work all the time(some times reboots needed until it work) and without overclock the performance is very good.