My Nokia N900 has the US keyboard with four arrow keys but no diacritics, two of which are used in my native Finnish language. I actually like having the four arrow keys instead of two arrow keys plus dedicated diacritics. You can anyway get those from the on-screen keyboard, but it is better to remap some of the hardware keys to be able to punch them in quicker. Here’s how.
I wanted to try out the Maemo SDK for Nokia 770, N800 and N810 devices (for some reason I happen to own one of every generation), but found out that there are no prebuilt packages for the 64-bit environment. The quick (?) remedy for this is the chroot jail, because a guest i386 environment can pretty easily be bootstrapped inside a 64-bit one. Here are the step-by-step instructions for doing it.