You can also add the apps AIM, Plenty of Fish, and Netflix to that list
I personally think that Boost Mobile is blocking access to some of these apps on purpose. Instead of PoF they would like use to use their own app (which you can't remove) Hookt and Netflix because it would take up too much bandwidth on their unlimited plan.
I emailed all of the mobile support in the apps I listed and I only got response back from one and that was from PoF. They said their app is designed is run on 1.6 and above. They asked for all my phone specs and what not so they could pass it along to their dev team to see if it was an issue they could resolve. They also told me that usually when there is an access problem with an app its because of the Android Market. That leads me to believe that Boost specifically requested some apps be blocked on the Prevail.
Another issue I have but its sorta off topic is Boosts pre-installed programs that can't be removed. They take up the memory on the phone and can['t be moved to the SD card. Memory space on the Prevail is cramped as it is and imo we should have access to remove the programs that aren't critical to the OS's operation if we have no need for them.