SBX - better ring sounds!
SBX - breakout cables need to be wired different so your extension numbers dont bounce around on the blocks, or change the port numbering on the cards(which I doubt they do)
SBX - dump the Windows based program and go to a Web based programming tool!
us linux guys need some love too!
I second the Android/Iphone app idea too, what a selling point that would be, to be able to do some phone functions i.e. forward your deskphone to your cell phone from your cell phone out in public somewhere, then make a call from your cellphone's data plan connected to the office so no one knows your not in the office!
