Why bother - just be patient a month or so and get the HTC Diamond
The HTC Diamond wins hands down against the Touch Cruise/Orbit 2.
to name a few:
smaller dimensions - just 11mm thick
640x480 VGA screen
new generation TouchFlo
4GB of built in memory
infact, AFAIK there is only one point to the Orbit 2 over the forthcoming HTC Diamond - the Orbit 2 has a memory card slot.