In addition to stuxnet which has been using the LNK vulnerability to exploit systems since approximately the 14th of this month (possibly longer) a few researchers have been mentioning that they have encountered additional malware utilising the LNK vulnerability.  eset has a write up here on what they have found - http://blog.eset.com/2010/07/22/new-malicious-lnks-here-we-go  

Until patched expect more. 

MH