For now, I'm trying to make this a proof of concept. A full peer on the phone is important for LAN gossip, and making gossip spread like wildfire, specially for people who's only computing device is a phone. Down the road, if previous steps were successful, we could consider local db pruning (of blobs e.g.), hybrid client (syncs data only from certain handful of accounts, the rest works as a lite client), and whatnot.