I am a max user and have been approached by an iOS developer that wants to make an audio utility based on streaming data. I have read through Mr. Brinkmann's book which was a good primer for this project. But in working with PD Vanilla I have found that there are a lot of useful objects in extended that would make this project much easier. I'm wondering what caveats should be employed if I want to prototype in Extended for something that will ultimately be used with libPD. I am not really up for coding new functionality in C if I am stuck using PD Vanilla.