The fastest way to reach me is to send me a direct message on Twitter. If I'm not following you, ping me with a mention to get things started.
You're also welcome to email me at tim at radtastical.com.
Finally, here's my LinkedIn profile.
220 South California Avenue
Palo Alto, CA 94306
Printers' Cafe is just down the street and is a great place to arrange a meeting. I'm also a huge fan of breakfast. Joanie's, Hobees, Rick's and Rudy's Can't Fail Cafe (Emeryville) are among my favorites. I should probably make a whole page or an app about this.
I've spent many years informally helping small development teams and individuals build apps, and recently was asked to provide more formal technical mentoring. I'm experimenting with that; contact me (tim at radtastical dot com) if you're interested.