Default Debranding HTC Hero- comments?

[Guest baggy111]

Hello. I have just received a new G2 (aka Hero) on T-mobile UK.

I am planning on doing this, please can you tell me if this would work:

1.Installing a recovery image

2.Booting into recovery and making a Nandroid backup

3.Installing a generic HTC Rom which has been packed into update.zip NB.Rom is a stock rom and therefore not rooted

As I understand after flashing I would lose rooting and would need to root again if I need to. However, I don't need to so am not too bothered.

I am hoping that this would remove T-Mobile branding, but mainly make the phone quicker as it is running the latest ROM. Would this technique work?

I would also like to know wether my sim-lock status would be affected?

Also if Donut/Android 1.6 is released OTA by HTC would my phone update OTA?

Please answer my questions and comment if you have any reservations/concerns about this. All comments are much appreciated.