iPhone firmware 2.0 jailbroken and unlocked
Prior to upgrading to 2.0, since i stopped traveling months ago, there was no longer a need for me to use T-Mobile’s WiFi Hotspots, i changed my data plan from the $19.99 Total Internet Plan to the $5.99 T-Mobile Web plan. When i did that, i realized Yahoo! push email stopped working. After upgrading to iPhone firmware 2.0, Yahoo! push email is still not working. In addition, i cannot get Apple’s MobileMe to work correctly as well. Changes that i make in my iPhone are synchronized correctly but changes made elsewhere are not updated to my iPhone.
After switching back to the $19.99 T-Mobile Total Internet Add-On, Yahoo! push email and MobileMe over-the-air sync are both working.