I built
tidbytes.net on the same stack (RoR + Twilio). Setup could't have been easier, and Twilio's documentation and sandbox system are great.
One issue I've had is with SMS delivery. About 1 in 20 or 30 messages seem to be "lost." Could just be me—not enough Tidbytes users to be sure yet.
I found I could replicate this issue consistently with one message. Turns out to be something to do with encoding. The content was text I copied from a webpage and it contained a unicode apostrophe. This message is consistently dropped somewhere on the network and never appears in the Twilio logs. Twilio tech support was awesome, very helpful and proactive troubleshooters. Unfortunately however the conclusion was that the message is dropped before it reaches Twilio, and therefore outside their control to fix.
Other messages drops appear to be unrelated.
Drew
On Sunday, July 15, 2012 8:55:12 PM UTC-7, DW wrote: