10 mins. and Hooked on Posterous

OK, it's been 10 mins. since I discovered Posterous and I am hooked. This is way cool!

Here are five things I need to find out about Posterous before I commit to it:

1) Can I use my own domain name for my Posterous blog?

2) Can the service support a simple token in the subject to prevent posts from fake email addresses? I am thinking of something like !!Password!! in the subject which is easy for me to add when I send an email both from my desktop and my BlackBerry.

3) Can I customize the appearance of my blog?

4) Can I use FeedBurner for the RSS feed?

5) Can I get my Tweets to show up on Posterous?