MS enabled SIP on WM6. They then leave it up to the ROM distributors to decide whether to put it on or not.
Personally I completely understand why dopod would not provide it on a ROM.
"Hello customers - here's a way to reduce our revenue streams - just use internet calling instead of calling with your mobile operator - it's cheaper for you and we make no money on it". isn't that obvious?
I know that you believe that you understood what you think I said, but I am not sure you realize that what you heard is not what I meant.
HTC 8X (Phone)
Apple iPhone 4S (have to - it's for work)
Nexus 7 Tab
ex. HP Touchpad
ex. NI Adam
ex. Morotola Droid RAZR
ex. Nexus One (RIP - Died after 3 loyal years)
ex. HTC S740
ex. SFR S300+ (Trinity / P3600 WM6.5)
Windows 8 x64