UPDATE: Sorry guys I jumped the gun on this one. This is the same one we found a bit back. (Can’t even keep track of our leaks anymore)
Jay let me now that he found OS 4.5.0.102 for the 8310 floating on the interweb. This looks like it is an AT&T beta but I cannot confirm or deny. 
Let us know what you find in the new OS version in the comments below. Thanks again Jay and keep the tips coming!
NOTE: Do not install this software if you do not know what you are doing. It may make your BlackBerry FUBAR or just plain angry.
Anthony Not Registered
Posted: November 21, 2008 at 1:19 AM EST
If you use BlackBerry Master Control Program 0.9.0.7 it will download the latest 4.5 OS including the new Beta for AT&T 8310 OS 4.5.0.102. I did this yesterday and it worked like a charm.
conedude13 Not Registered
Posted: November 21, 2008 at 4:42 AM EST
What carrier was that other 102 for?
Berryreview ( View Profile) Senior admin - Posts: 5297
Posted: November 21, 2008 at 4:49 AM EST
Sorry guys I jumped the gun on this one. This is the same one we found a bit back. (Can't even keep track of our leaks anymore)
Jay Not Registered
Posted: November 21, 2008 at 8:32 AM EST
The version listed here is the same one you will get DL from BlackBerry Master Control Program 0.9.0.7, exactly the same and unfortuneatly is not a AT&T Beta or it would show up in the vendor.xml. I personally have every version from the official AT&T 4.2.2.170 to 4.5.0.102 and all the ones in between.
disciples0 ( View Profile) Newcomer - Posts: 48
Posted: November 21, 2008 at 2:06 PM EST from my BlackBerry 8310
Link is no longer good via wap