How did I know about this? It's because I bought from them only to be forwarded to a page containing the guide to free unlocking developed by the DEV team. This site must be stopped. And they are selling for $29.99.
On the sales page, they are clearly hinting that they are a reseller for IPSF solution but this is NOT the case.
I bought from this site after upgrading to 1.1.1 (first day of 1.1.1 release) and then downgrading back to 1.0.2 hoping that IPSF can unlock the 1.1.1 baseband but it did not work as well
All iPhone users beware!!
For my case, I have already opened an paypal complaint with paypal