thanks for u comments and suggestions! i have been waiting for a person like u to voice out!

well, about the license thing, it is in progress. soon we will get a license. so this problem can be solved. and again once we registered a license, then we will setup a small company to run this business. so about the assurance as u mentioned also can be solved. cz we will publish our company contact/location on web.

then, about the services, may be it is not clear enough. we will update it and make it easy to understand. because it is like what u said, a fixed period for each customer. but in FAQ the way we write confuse u and make u misunderstand it. sorry about that.

last, the way to lock the source to be viewed is use AJAX technique. u can google it. it is a good practice for u hope it can help u!