Ics roms won't break 10mbps down. Eclipse does 20+mbps down. (assuming your in a good 4G area and can afford a decent internet connection)
ICS ROMS are good for a BETA preview like I've said but not as a daily driver. (unless your a cosmetic over functionality fanboy)
They wont be ready until after an official ICS release for the bionic.
Sent from my AKOP ICS Bionic