Note: sgitcoin != sgbitcoin (so the Zhou Tong - BitChen connection is not clear at all imho). Also Zhou has not been hiding the fact he owns sgitcoin.com:
Yeah need more evidence for that and it is true that Zhou has never been hiding sgitcoin.com (dunno how I missed that post from him!)
But there does seem like sufficient evidence to strongly suggest that Kevin Lim and Bitchen are one and the same. Not sure that is very helpful yet though!