Well pretty much every single app you mentioned in your want list is available to you right now if you jailbreak. What do you think can go wrong? You click on a 'Go' button and it does everything for you. If something did go wrong you could just restore the original firmware on it. Considering this is an overclocking site it always surprises me that a simple and completely reversible tweak on a mobile phone is considered scary to some people.
did it this morning. Curiosity got the better of me. Installed the apps I was interested in and have been using them all day. I'm totally underwhelmed by all of them. Think I'll wait for the official stuff; I'm in no hurry.