I'll let srfl give his impression, he had much more time to spend at their booth (I am so jealous

). IMHO, the SA1 is exactly the same proportion to the MA1 as the S9 is to the M9.
I'm with bigtaco, that rail on the front of the SA1 is worthless to me and makes the gun bulkier than it needs to be. I'm glad I have my S9 as it appears much slimmer towards the front and subsequently more comfortable for IWB carry.
The Steyr booth was pretty cool, lots of nice guns and the SSG 69 is about the best bolt-action sniper rifle I've ever held. The double trigger mechanism is just awesome from the factory. The AUG-A3 Commando with 40 mike-mike is my favorite.
I only got to go to the booth twice before the show opened, and never got to speak to "Carl" who others told me was the guy to speak to about getting the competition version of the pistol on the drawing board. Oh well, hopefully they can just be successful and make it sometime i the future.
Jeff