Yes, and you will note I said "slightly faster CPU and GPU". The point is that the whole device is much more resource constrained, as what needs to be done with the CPU and GPU on the original iPad is more than on the iPhone 3GS, but the CPU and GPU are not faster enough to create the same effective performance.

Yes, raw performance may be better on the original iPad. But raw performance is irrelevant if you can't get the same effective performance for the user.

I see

I find safari on an original iPad almost unusable; after upgrading from iOS4 to 5, it crashed regularly - I presume due to not having enough free memory. Support stopped at 5.1, just under 2 years after its international release, and only 1 year after it was replaced by ipad2.

Seems like they already have a handle on deprecation.