I used to work as a software tester in Tampere, Finland with Nokia devices. We didn't test those devices in particular, but they were a big buzz in our office back in the day. I still have my n810, but haven't used it in years after the battery died. I remember adding a bunch of unofficial repos and having things like apache and python running on it and using it as a web server for a while. Eventually the battery was so discharged, even having it plugged in to the PSU would not be enough to keep it powered. It was such a shame it wouldn't run without the battery. I probably would still have use for it.