Does iPad 2 support Siri on iOS 6?

No.

No. read down to the fine print at the bottom. The only iPad Siri will be on is the 3.

Why does it say io6 compatible with these devices? i cant see where it say no siri on the ipad 2.

Right underneath that image:

Siri will be available only on iPhone 4S and iPad (3rd generation) and requires Internet access. Siri may not be available in all languages or all areas, and features may vary by area. Cellular data charges may apply.

Look closer.

Unfortunately not.

No very disappointed that it does not have Siri on iPad 2

I waited for the update expecting to get Siri on my iPad 2 but turns out there is none