The phone-2-directinos "phone mashup" provides point-to-point driving directions based on start and destination phone numbers. It combines telephony, speech recognition, reverse number, and driving-direction web services; no Java, GPS, or cell towers needed. This mashup is coded in PHP5. The complete source code for this sophisticated mashup is available here. It works in conjunction with three SurVo voice form templates available on the Ifbyphone site.
Please send me an email and I will reply with the zip archive. I was able to download fine from the forum, perhaps if I email it directly it will work.
Just as an FYI- this is not the code for the Google Maps mashup that was on our blog if that is what you are looking for. I hope to have that example written up and on this forum by tomorrow.