All port GPRS access on TMobile for Free?

Smartphone Thoughts today links to discussions on using TMobile's GPRS now for free and it appears as of right now has all ports open.

Why is this such a big deal? Well in SBS land we have this thing called the Remote Web Workplace that by default uses ports 80,443, and 4125. Then you have Sharepoint Services that uses port 444. If you can use your Windows Mobile phone on the TMobile service you can get to this for FREE. Or if you have a pocket PC with bluetooth and attached to your TMobile bluetooth phone you can get these for free! This is a great deal for small businesses to stay more connected and continue to use the great features of SBS 2003 including things like Outlook Mobile Access or Outlook Web Access.

There's some discussion that this might be due to TMobile's pending HP Ipaq H6135 coming out soon but who knows?
Look into it as I know I will.