There's also the fact that when you crossfade between songs you HAVE to have the capability to have 2 sequences going at the same time - naturally. Who knows when you want to crossfade songs and throw in a sample or three as well.
I'm very excited that the Audya has this, because, to my knowledge, no other arranger save the Korg PA1x/PA2x/800 has this ability. It really was a deal breaker/maker function for me.
All this power and multitasking ability makes the Audya a REAL contender in my eyes.