Found this from a blog yesterday, you can get a T-Mobile Dash smartphone for $49.99 from here
“Select “Save on the latest devices from T-Mobile” in the next page select “Click Here for Discounts” then “View Products” and last “Handhelds and PDAs”
The $49.99 is only for new activations, does not include activation fee, and only requires a one year commitment, which is pretty good. The better news is that you will be able to upgrade it to Windows Mobile 6 via a sofwtare download soon.”
I already signed up for one, hopeully I get it by the end of the week. It never hurts to try something new.