If anyone else tries it, it is possible to get Enblend working on an EeePC, but I had to compile it manually (ie configure/make/make install).
Neither Enblend-Enfuse 3.2 or Enblend 3.0 would compile successfully, they either failed, or actually caused the Eee to reboot.
In the end I got the slightly older 2.5 to work, but I had to run configure multiple times, and then apt-get various libraries that it needed before it would configure happily. libxmi had to be downloaded and configure/make/make installed itself, since it doesn't seem to be in any obvious repository. I also had to set LD_LIBRARY_PATH to point to /usr/local/lib. gcc itself proved a bit difficult, I had to make sure that libc6-dev was also apt-get'd before enblend's configure was happy.
Enblend 2.5 seems to run OK from Hugin, and produces much better panoramas, especially if like me at the moment, your camera doesn't allow you to lock the exposure for multiple shots.