Yes, it will run Java, and no, you do not need to remove IE, infact, it will move all your bookmarked pages automatically once you install it. Pretty sweet system, you can open new tabs inside of it, rather than opening a second IE window, you just hit control+T and it will show you a new screen, and then you can switch back and forth much faster. Here is the linkbigtaco said:don't know anything about it yet... but it looks interesting.
dumb question number 1) will it run java?
dumb question 2) need i remove ie? could i keep and use both?