Joe being the cover story in Guitar World magazine is no surprise, but they also specifically quote him talking about his discovery of amateur radio, learning electronics, and becoming a ham. A plug for the hobby! May 2012 issue.
Be sure to take a peek at Ham Nation episode 1 over on www.twit.tv . 1. Walsh is a guest and discusses how he got into the hobby there as well. Good stuff!
...and NO, it's not a vanity call, it just happened!
"An armed society is a polite society. Manners are good when one may have to back up his acts with his life." - Robert A Heinlein