I see that the system reqs for KMS is Windows Mobile 5.0/6.0.
Does KMS support Windows Mobile 6.1 or do I have to wait for an update?

No reported issues,
Give it a try

Seems to work fine for me.

I have now installed KMS on my HTC TyTN II running WM6.1 and it works just fine.

WM 6.1 is supported, system requirements will be updated in short time

Thats good news, thanks for the confirmation Viktor
Will you update the 'Supported Models' page also?

Hi, shah jahan,
we will update the list of supported platforms and add some new models.