The Alltel 6.1 ROM has been beta for a while. I have a copy (dated 7/10/200
and a few people I know are running it. Sadly, GPS was NOT enabled and one of my friends was unable to patch it using the method Shadow-Tech provided previously. Because of that I am sticking with my 20273 build and have not flashed my phone. However, it does use EVDO Rev. A which was fast and a big boost to people tethering their phones to laptops.