Let us examine other possibilities:
Trying to raise capital?
I don't really think so, at the rate that they have been gaining a hold on their market. Plus factor in this lawsuit, does it really seem plausible that they are having enough financial woes to sell out?
New technology?What are they gonna get out of it? Their system works. It doesn't exactly need Cisco.
Ahhh well, I don't see it happening. Just my view.