I'm currently running '1ceCream Flavour (Beast)' ROM. (Brilliant ROM btw. I've used Elelinux, Ligux, and HTX MIUI also, so props to those ROM authors)
I'm not sure if it's related to the ROM itself, but I can't get it Fancy Widgets and Genie (News and Weather) Widget to use my location. As far as I am aware it worked for most the day. Location via GPS works but not thoroughly tested to confirm that. However Location via Wireless/Network doesn't seem to work. The Apps fail to find them. I am pretty much sure it's the same across all Location based Apps. (The location services work under the other ROMs, although HTX MIUI had a similar issue)
I've tried reflashing/wiping..formatting SD card/SD EXT etc. Stopping google framework and clearing cache for that and market.
flashed the v1.1 of 1ceCream Flavour to see if it solves it. after making sure everything is wiped. still the same.
BTW I can't post in the Dev Section because I don't have 10posts count yet so that's why I'm here