Yesterday Ronimo featured the Awesomenaut Talker on their Facebook Page and their Awesomenaut forums!
Check out the HTML5 soundboard: here
The source code for the project can be found: here
To me, the interesting part of this application was testing the feasibility of cross-browser HTML5 Audio with a Flash fallback in an application where the sounds were event triggered and timing would matter ( for the recordings ). I found that latency certainly is present, depending on the browser it can be worse than in others, but it’s pretty much always there.