Once again, I tend to agree... A manufacturer is not obliged to revise a working product. Where is the profit in that?

However, as new feature development progresses slowly towards a new model, manufacturers will sometimes (especially when they HAVE to bring out a new OS to correct poorly designed features and squash bugs) incorporate some of the new features to 'beta-test' them before the new product launch. And you will often see this when a new generation of product first appears, like my G70.

However, the T2 is a second-generation product, so many of the 'fixes' and improvements from the T1 have already been incorporated, leaving them with a mature, reasonably bug-free product (or at least, T2 owners are VERY tight-lipped about any unfixed bugs, unlike us Roland users!), so unless Yamaha want to lose sales of the T3 by releasing the new features for free, they are likely to just wait until the new model is ready...