My experience reguarding the 4G data drops is that I noticed an uptick it problems about 5 days ago. I would randomly have data dropping in and out at times, then other times I could browse around with no issues at all. This was happening before I manually installed the 905 update.
Saturday morning I decided to install the 905 since it was supposed to address the data drop issues but so far I haven't noticed any better performance.
Prior to around 5 days ago the data drops were not that big of an issue...one here and there. I am wondering if Verizon is having network issues in my area and the data drops have nothing to do with the phone or software/firmware version.