AngelList dev here. Feel free to send questions, ideas and other feedback my way. I'm more than happy to whitelist any HN users that want to do something awesome on the API.
I plan to create an iOS app from this. If there's any designer or dev who wants to help, shoot me. Otherwise I'll be working on this during my free time by my self.
Thanks for a great API guys, I tried to use it to do some interesting things during the TC hackathon this weekend, but one thing that prevented me from using it further was that there was no way to get a list of all the "tags".
I could have just iterated over ids, but really had no time or desire of doing it.
The use case for me was pretty much similar to what the user would be doing on your site -- Enter a few tags/markets like Automotive, Group Buying, Travel and see which companies are associated with all threes. But in order to do this and be able to autocomplete, id need access to the tags