Features can be products as Twitter and Wufoo show. I think the power of them is that they're extremely focused. If you're on Facebook, you have more than one thing to do and probably won't use the status updates much. But if you're on Twitter, you're there to update your status and that's it.
#5 is messed up. He did 1337 speak instead of doing the prpr thng lk ths. Fscntng hw mch smllr wrds lk.
well its a few ideas, including some mobile and a web portal, tho there just simple ideas and not much,i will give a little bit more thought to them first to see if its not just utter crap :s if i like how it turns out i'll post bout it later maybe ill find cofounders here cause im far from technical and hackerish :P