I just bought a 8 GB Micro SD SDHC card for my E90...and it works!
Now I have Wikipedia, maps of most areas of the world for the navigation system, Putty, several dictionaries and some other software installed on my mobile phone. I will have to wait some months before the 32 GB SDHC is out...hey...there's space for an OOo installation left on the device. Does anybody know about details about a StrongARM port ?