I would say $xx. It seems like most organizations use acronyms... I think they are sort of undervalued. I would pick up a .org acronym before a .net. It looks like the .com is for sale though, so to a buyer there are better options. Good luck!
Exactly what I was thinking "Voice Over Instant Messaging"! Yeah I spotted it in a drop so thought what the hell, I also bough XUNE.org at the same time and am in talks with a possible end user who seems intersed, fingers crossed!