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what is it and is it any good for my r4 and where can i get it
Post Merge: [time]1254379316[/time]
anyone? :'(

It's firmware based off DSTT firmware. http://gbatemp.net/index.php?showtopic=97615

I'm also interested, will this improve my r4, considering I have never had a problem with it.
Is the interface the same?

More or less in some aspects, it's completely different. The interface is different yes.

so when i turn it on does it open auto or do i have to manually go on it

When you install it correctly, it replaces your R4 firmware. It's automatic.