Gizmodo is reporting that the official Windows Mobile 6 upgrade will come to the T-Mobile Dash on May 4. There are some caveats to performing the upgrade so users should be sure they are willing to make the exchange.
"The caveats are that WM6 doesn't have the "My E-Mail" client, and all your data on your phone will be erased. Once you upgrade, you'll get some error messages from "701" unless you log on to My T-Mobile and delete your "My E-Mail" accounts. Other than that, you can bask in the fact that you're the first in the US to have WM6 phones."
"The caveats are that WM6 doesn't have the "My E-Mail" client, and all your data on your phone will be erased. Once you upgrade, you'll get some error messages from "701" unless you log on to My T-Mobile and delete your "My E-Mail" accounts. Other than that, you can bask in the fact that you're the first in the US to have WM6 phones."