Please dont mind my asking but....why would you put effort on MIUI based on ICS? The GB version has the following working opposed to the ICS:
1. Fully working WiFi and Data (no need for extra patches etc)
2. No problem with low in-call volume
3. Mic is working so we can use Skype and other such apps (i am not talking about when we speak on the phone, that works)
4. Fully working Camera
Additionally, its faster, no lags whereas it still has the nice MIUI interface!!!!!
I will patiently wait for an even better GB version
Good luck with your work!!!