According to "MeeGo 1.2 Harmattan Applications", the package name must
"consist of only lower case letters (a–z), digits (0–9), plus (+) or minus (–) signs, and periods (.)"

This would mean that the only allowed format is "myapplication.1.0.deb", but the guide goes on and give "myapplication_1.0_armel.deb" as an example. Is underscore (_) allowed or not?

This might sound like a no biggy, but I actually got an app rejected for this kind of stuff