question about hid in rockbox

[alex wallis]

Hi.
I know that one of the gsoc projects is to try to introduce hid to rockbox.
I have read the hid entry on wikipedia, so I understand basically what it 
is, I was wondering is this going to make life for programmers easier, or 
will actual rockbox users see benefits from the introduction of hid?
If so, what kind of benefits might they be?