Stability at the gig would be my primary concern, Jose...
I agree that most of the demos sound very good, and it definitely has that strong contemporary Latin stuff nailed, and a strong following and style support in Portugal. But unless, as an arranger, it remains bombproof on the gig, the quality of the sounds won't really be that important.
Something else to consider is, have you tended to edit your styles on the T2 much? If you like to customize them up, as far as I know, the Audya's editing tools are still not quite ready for primetime. The sampler is still a work in progress (no multisample import, for instance) and bugfixes seem a fairly frequent thing (good in a way, but it does expose how many and how basic some of the bugs are).
I can definitely feel your urgency for change, but I would want to KNOW that my livelihood doesn't depend on waiting for a bugfix for something that makes gigging difficult. And, in all fairness, despite glowing praise from just about ANYBODY, I would want a good store tryout for a day or two before I plunked down that much money for such a 'work in progress'... But that's just me! When I have something that works, I tend to be nervous about change until I am SURE...

In the meantime, how about just adding something like a Sonic Cell module to the T2, which does have some pianos pretty close to the G70's? It might get you through until you are sure the Audya is ready for primetime (and maybe even be good with the Audya, afterwards)... a LOT cheaper than an Audya, that's for sure
