And here it is, the moment many have waited for :) 6.20TN-A is up and running. I personally have it on right now, and it works perfectly.
You can download it here: http://www.megaupload.com/?d=C03RTLG9
I also added an entry to the PSP download page.
This contains Omnija's trimmed down and prettied up version of the Patapon 2 Demo, a stripped down HBL Rev109, and the HEN. Once installed, running the exploit automatically starts up the HEN, don't be fooled by the PSP going straight back to the XMB, that most likely means it worked.