I have seen several like this one the past few weeks. CWI.com was another odd one... It was dropped and grabbed by Pool. It sold for 15K. I am not sure if it was paid for, since it's still on Pool's DNS, but the IP location shows Marchex Inc.
If I can remember correctly, the whois showed an expire date of 2010, but the domain was Pending Delete and did drop on the 17th of last month.
Several that I have been watching go to On Hold (Generic) then some at some point just jump to Pending Delete? Not sure how that works.
For example...
http://whois.domaintools.com/oni.com it just has not went pending delete.... but it's been On Hold for at least a week or more.