I have none of those issues you mention (no reboots, no loops, no touchscreen, nothing). I believe such problems are exceptions. There were reboots (only while idle) with the previous OS version, but new devices should come with the upgrade pre-installed. In any case it's very simple to upgrade. All stability problems (the reboots) disappeared for me with the upgrade.

For 3party apps. I have maemo mapper, puzzles games, battlegwled, omweather, quiver image viewer, maemo recorder, xterminal, claws-mail, and a few more. No mplayer or canola. Sometimes this matters. Oh, and I have simple launcher installed. This one creates a tiny problem whenever a new app is installed. In fact that one, and one problem with the built-in email app. are the only minor issues I have, none of consequence and with simple workarounds (see my first posting in the 'uptime' thread).

If my N800 was run over by a car or something I would buy a new one instantly. I can't imagine going back to being without one.