Journal: Google vs. Merobase: Which is the better Codesearch Engine?

I wonder which one is the better codesearch engine? There has been a huge hype around Google's (google.com/codesearch) codesearch although it looks rather unfinished to me. Everybody is happy about regex for more detailed searches. But is it really what we want? Do we want to bother with regex? Don't we want to simply search for signatures? Just paste in some Java stubs and get results? It is not a dream anymore. http://merobase.com/ can do this! Better than Google?