The Macintosh would need to be replaced by a new platform, or reworked to run on more powerful hardware.
The games are played on more powerful hardware, and then streamed to your television through the box.
This more powerful hardware allows for high definition graphics which would be used until today.
Such increasingly powerful hardware and software can be expected to create new export-control problems for the Government.
Even cheap "dumb" phones without touch screens or powerful hardware can surf the Web.
WP7 is buttery smooth, and that too in half as powerful hardware.
Tilt control isn't an issue for that, but ability to run on less powerful hardware and with less memory is.
We'd end up with some very powerful hardware, but without the ability to push it further.
Although, maybe that issue would be solved with more powerful hardware.
Customers value the richness and reliability of our software, coupled with powerful hardware.