I recently started using SimplyMepis (latest, V 6.1 I think), and am really impressed. However, when I use Synaptic to add software I always get a warning that the packages can't be authenticated. I searched on this and found a thread on the mepis lovers forum
about it. In general they don't seem too worried about it, and it sounds like this is not a "bug", but that the distro doesn't use authentication. However, there are are pointers and a link to a debian article showing how to manually add the keys yourself.
I'm very tempted to not worry any further about this since I am only using the repositories that were activated by default. Am I wearing rose colored glasses here?