Android emulation for single process

Single-process emulator... is there one somewhere? Blackberry seems to use one, too (any idea how it is called?), but I can't find them. Apparently Myriad Alien Dalvik was second attempt (and they got it running on n900, but it seems to be waporware). I believe android emulation is going to be very very important very soo -- because of all the local apps. I tried downloading android sources, but even that is non-trivial, and compiling them is apparently also non-trivial... Like weekend project.