So what happens when MS fully unveils their Tellme plans and suddenly we have something like Siri but simultaneously available on our phones, TV's (through Kinect), our PC's and our tablets? And it's all linked by our Live ID's and Skydrive?
You see, Siri is really cool, but it's isolated to one device. Sure, it'll likely gradually expand to the iPad 3 and OSX and thus be more useful, but this approach is a bit different than what MS seems to be planning. There approach is more broad, approach Tellme as a tech that will service multiple devices instead of being limited to just one.
By next year, I'm confident we'll see exactly what I stated above at least on a basic level. But as others have mentioned, if the prototype Tellme video has implementation that is 2 or 3 years off, then maybe their approach implements too slowly. We'll see ...