T-Mobile seems to have put the N900 in a corner.

If you try to change plans, it asks which phone you have, & does not list the N900. If you then select "I don't have a T-Mobile phone", you get a message that you can't change plans if you don't have a T-Mobile phone.

I'd really like to get the day-pass data rate. Right now, I'm on the pay-per-MB mobile web data rate of $1.99 per MB, which is even more insulting considering that 4g isn't available in the area.