Sage Summit now accepting partner sponsors.
I'm not certain if this was exclusively prohibited in the past - though Sage is now advertising in their ""New Exhibitor"" mailing that sponsors can include Sage Partners.
You'd be barred from soliciting any other partner's customers for sales of Sage products or services. But frankly that leaves a lot of wiggle room. I'd also presume you cannot hang a Netsuite or Accumatica banner on your booth (which is more generic this year since Sage supplies the booths).