Well, I've been reading through this thread since the ICS leak was announced and I guess I'm the only one still experiencing a significant amount of data drops. I did the install on Friday using all the reccommend wipes and procedures and everything appeared to install fine. It looked like data was fine while I was at work (I was mostly on WIFI but I did watch it as I drove home) however after I got to the house, I kept seeing the drops and searching for new connections. I think I only managed to keep data for a few minutes at best. I let the installation settle down until Saturday afternoon but the drops seemed to get worse instead of better. I did all the normal things like airplane mode, reset the SIM card, etc but nothing helped. I also reinstalled the Phone Info app and manually forced the network to CDMA but nothing made the drops better. It looks like anytime I try to get the Bionic to look at the PRL file, the problems start. If I lock it down to non-PRL, I get a solid data connection but it's locked at 1X. Finally I used the BionicTCP app and applied the large buffers and this has made the issue a bit more manageable but I still see quite a few data drops and some data stalls. The only thing I can do is force it back to CDMA mode and live with the serious speed reductions. So, it looks like the leak is pretty good if you are in a solid 3G/4G location but if you live on the fringes like me, it's not much of an improvement data wise. Just passing along my experiences.
Cheers