UPDATED:Refreshed myTouch 3G due out today? Fender Limited Edition out of stockThis article contains unofficial information.
The main difference between the original myTouch 3G and the refreshed version is the 3.5mm audio jack on the new model along with an increase to 288MB in RAM, up from 192MB. The new model offers the Swype keyboard out of the box. An 8GM microSD card is pre-installed. As a further note, Tmo News is reporting that an OTA upgrade was sent out to the original myTouch 3G models at midnight just to improve call performance. While the new myTouch with 3.5mm Jack is shipped with Android 1.6, it is assumed that an upgrade to Android 2.1 will take place within a couple of months. The Fender Limited Edition has already been confirmed by the operator to be receiving 2.1. Since the refreshed version is basically the same as the Fender model, an upgrade there seems like a great bet.
Finally, T-Mobile's web site is showing that the Fender Limited Edition model of the myTouch 3G is out of stock. Heavy promotion by T-Mobile, using Fender guitar legend Eric Clapton has helped push demand for the unit. It is not known whether or not T-Mobile will re-stock the phone considering that it was supposed to be a Limited Edition after all.
T-Mobile myTouch 3G 1.2 Preliminary Specifications
T-Mobile myTouch 3G Fender Specifications
source: T-Mobile, TmoNews via AndroidandMe
It is now official as T-Mobile has launched the Refreshed version of the myTouch 3G. Besides the previously mentioned changes, there will also be some apps loaded on the phone out of the box such as Barcode Scanner, Visual Voicemail, myAccount and Music Player. the phone will be known simply as the T-Mobile myTouch 3G and will cost $149.99 with a 2 year contract.