As so many of you have heard, the Second Life client source code has been thrown open to open sourcing. Now most of you who've used Open Source software know that one of the common habits of OS developers is to take the same code and tweak it in a million different ways to produce a million different 'forks'.
If you had l33t coding skills and could code and compile the source differently, what would you put in the client for yourself? None of those lame "less lag" things - everyone wishes for it already. I want off the bat answers, and I want them... erm... now? XD
Answers in the comments please!