HX4700 sous Android (Seems to be working !)
I found this :
You need to understand Russian (or use google translator) but is worst the try !
Instructions to build an Android system for an HX4700 device are here:
In addition those instrucions make you build a 2.6.29 kernel. As I write those lines, it might be possible to build a 3.X kernel that should be best suited for those devices.
Sorry for the link but the antispam regulation forbid me to do better.
Pictures of the results are available on those sites
PS: I'm currently working on building this kind of system for my device (without Haret). When it'll be done I'll post the ROM.