Well a ping pong game has brought up yet another odd connection - Cube Tech's VT168 ping pong (which I have on the Overmax OV-Gameplayer. it's also listed on their site) has the same music as "Tennis Exciting" which is copyrighted to Waixing and appears on the iSports, MiWi Extra
here and NJ Pocket (with the copyright removed).
Tennis Exciting itself isn't on either Cube Tech's site or the Gameplayer but a quick comparison seems to indicate it runs on a similar (but slower) engine to VR Tennis which is on both. What the hell, Chinese companies. I'm kind of wondering if Wise Wang has something to do with this, he seems to have been quite closely involved with the VT168 and he's done a bit of company hopping in his time (Jungletac->Shenzhen Biikoo->Cube Tech that I know of)