Sadly this is not OS 5.0 but at least AT&T is trying to keep up with their latest release of OS 4.6 for the Bold. Joshua let us know about AT&T releasing OS 220.127.116.114.
BlackBerry Handheld Software v18.104.22.1689 (Multilanguage)
Package Version: 22.214.171.1249
* Applications: 126.96.36.1994
* Software Platform: 188.8.131.52
* File name: 9000M_PBr4.6.0_rel519_PL184.108.40.206_A220.127.116.114_AT_amp_T.exe
* File size: 96.79MB