I just know the website – China-8.com. It's one of the competitors among those online Mandarin schools in mainland that we guys must care about.  There is a video which was demonstrated by their foreign founder. Also here is some of the info about the HK based company I searched from Google:  

China-8.com Beta of New Web 2.0 Chinese Distance Learning Site Launched; Ajax Meets Online Education

Innovative new Web 2.0 distance learning site leverages Ajax widgets and a unique desktop metaphor to deliver interactive lessons, multimedia dictionary, smart flashcards, a China-centric wiki, and instant messaging and chat tools, blazing a trail for online education. Onsales Global Services Inc. today launched China-8.com, the world's first e-learning or distance learning website that is totally based on emerging Web 2 technologies. The site uses Ajax to deliver a totally new way for students of Chinese and China enthusiasts vising China for travel or business to study Chinese, communicate, and share their knowledge of Mandarin and of China. China-8.com uses a unique desktop metaphor to give users a personalized space where they can learn Chinese, put what they have learnt to use using the communication tools, and share their knowledge and experiences of China by uploading photos and videos.

Admittedly, Ajax program is so powerful that all the functions in the dynamic destop have well performance for me.  In my opinion, it will bring the new technology revolutionary for online education fields and also threaten traditional distance-learning websites all over the world.  Definitely I side the view on new tech era in 2007.