The iPad runs Apple's own CPU, the Apple A4, manufactured by Samsung. Not surprisingly, it has an ARM Cortex A9 CPU core in it, which makes sense given that the iPod Touch and iPhone all use ARM-based CPUs, otherwise they'll have to resort to software emulation which will kill any performance benefit it's 1GHz clock speed gave it. I've not had the benefit of trying out Leaf's Capture Remote app, but if the iPod Touch can run it, then the iPad should run it even better, but for certain, I would seriously doubt that the Apple A4 CPU can come anywhere near the performance of even a "lowly" 2.4GHz Intel Core 2 Duo running at full blast converting a RAW file...
People look at the iPad and yawn, saying, "OK, ya, so what, it looks like a gigantic iPod Touch." but from someone who worked on industrial apps when the Apple MessagePads came out, this is the sort of tablet device we've ended up having to wait a decade for. Screen quality, price, thickness and battery life are everything for this form factor, and I would expect they've tuned the multi-touch experience well too. I say, "Finally, someone's finally done it." Now I hope it sparks a plethora of competing ultra-thin tablets from Asus, Acer and the rest too.