dstiles - 4:56 pm on Sep 4, 2010 (gmt 0)
I'm seeing several hits during the past fortnight (approx 130, earliest 14th August from the range 65.55.25/24 with rDNS on the order of ns1.msft.net.(space here)msnhst.microsoft.com
All have the UA of:
Needless to say, all blocked.