RPC methods return strings instead of floats:
https://github.com/genjix/bitcoin/tree/strrpc

Immediate initialisation of RPC + isinitialized in getinfo:
https://github.com/genjix/bitcoin/tree/isinitialized

Name resolution for addresses (genjix@foo.org -> 1kjdskjds3232dsjds4343):
https://github.com/genjix/bitcoin/tree/bitnom

Maybe you could setup a way to generate custom builds for distribution.