So your going to load Akaii samples into a keyboard with DIMM ram and wait about 60 minutes until it boots? At least Yamaha had the forsight to add Flash Ram to the T4 so you can convert your Akaii samples to WAV and then add those samples to Flash Ram. Can you do that on your G90?
And when was the last OS release for the Pa2xpro and the G70?
Al, the best Korg PA2Xpro users can do is buy the PA3Xpro
if they want improvements, and to make matters worse, Korg is
extremely shy about showcasing these betterments, especially "live".
Are they ashamed of the instrument?
The only updates Roland G-70 users can hope for, would be to buy a spare instrument for parts.

Roland has long moved on from that instrument.
Of course, they can always duct tape the new, and really cool BK-7m to it...that would be an update.

Ian