See cjoseph's post , i agree with him and i cant/wont provide software download, while this wasnt ever the plan , also not via PM or whatever.
if you are Aruba Customer with valid ArubaCare/Maintenance/Support and have one of those affected products, please open case and discuss with Aruba Support/TAC team , they should decide to provide or not to provide you the beta release
i dont see it as a problem to provide this to customers if they are willing to test beta in production or for eval/demo , i never received a beta upon request from support team, -> neither i ever needed a beta , i just was informed by my sales guys that this Beta is available and so Aruba Support should decide if they want to provide to let customers in field test their Software and are "happy" again instead of being angry about the non-mesh in the IAP274/275...
thanks!
ben