1. I launched it this morning, so no, I haven't made any money off of it yet.
2. I worked on it part-time for 2 weeks. I'd say it was about 4-5 full days to put together but a lot of that time was spent learning new technologies/APIs I hadn't used before.
The tech used to build it are on the FAQ page:
Tornado
Redis
Twilio
Google URL Shortener
ReCAPTCHA
Mako Templates
jQuery
SimpleModal
IcoJoy
WinningTheme
I've launched http://fonoso.com/ a couple of weeks ago, which takes your idea a step further and records full phone calls and could be used for podcast recordings over the phone, or any other use case where you want to archive and/or share a phone conversation.
I didn't put any time or efforts into polishing or marketing it, so if you (or anyone else) wants to team up, contact me at agranig@fonoso.com. Instead of twilio or something similar, I use my own SIP trunks to carriers, so for inbound calls, no fees are charged. It's easier to offer something for free with this approach :)
2. I worked on it part-time for 2 weeks. I'd say it was about 4-5 full days to put together but a lot of that time was spent learning new technologies/APIs I hadn't used before.
The tech used to build it are on the FAQ page: Tornado Redis Twilio Google URL Shortener ReCAPTCHA Mako Templates jQuery SimpleModal IcoJoy WinningTheme