tedster - 8:35 pm on May 11, 2010 (gmt 0)

I suspect that more frequent "re-invention" of the description snippet - done on a query by query basis and taken from the body content - is going to be part of the "new" Google.

I used to happen on a small scale and when the query terms were on the page but a major disconnect from the meta description. Now I'm beginning to think creative snippets can happen when the clickthrough is too low for that position, no matter what the meta-tag says.