I was just able to successfully upgrade from the "leaked" 2.0 to the official 2.0 today.
While I was running the leaked firmware I came across a bug/problem that I am not sure if anyone else has experienced. At some point I dragged the MLB At Bat app to the bottom 4 to see if it would go down there. It did, however, it won't leave now! I am stuck with an empty space. When I try to move the iPod icon back down there the MLB app will show up again and refuse to leave. If I try to drag it off it pops right back down. There is also a space between the icons. Here are some screenshots I took, hopefully I explained this clearly. let me know if there was something that you don't get.
While I was running the leaked firmware I came across a bug/problem that I am not sure if anyone else has experienced. At some point I dragged the MLB At Bat app to the bottom 4 to see if it would go down there. It did, however, it won't leave now! I am stuck with an empty space. When I try to move the iPod icon back down there the MLB app will show up again and refuse to leave. If I try to drag it off it pops right back down. There is also a space between the icons. Here are some screenshots I took, hopefully I explained this clearly. let me know if there was something that you don't get.