The CBOE announced that they will begin trading weekly expiration VIX futures and options. Weekly VIX futures start Feb 13th. Should be interesting.
http://www.cboe.com/micro/vxst/pdf/VXST.pdf
http://ir.cboe.com/releasedetail.cfm?ReleaseID=822177
http://www.cboe.com/micro/vxst/pdf/VXST.pdf
http://ir.cboe.com/releasedetail.cfm?ReleaseID=822177