Google Mayday Update

There has been a lot of talk about a major update that google did around May 1st that is affecting long tail search terms.

Webmasters all over the world are reporting a drop in Google traffic of up to 50%

see:
Mayday Alert for Webmasters after Google Algorithm Change

So I was wondering if members here have noticed any drop in Google traffic particularly for long-tail search terms, for May compared to April