Note Helper

Note helper is a new kind of application—not a new genre, but a new idea.
Sometimes, people overlook simple problems, say “hay, there's a work around”, but that's not good enough; there needs to be a quick, simple way to solve the problem. Note helper aims to bridge the gap. While possibly not a complete solution [only developer integration can do that], it is an easier solution to the problem.
Musical notation is chaotic—at first glance there isn't a pattern [there is, though]--but why memorise seven values, then work out averages, or multiply when you can get a computer to do it for you?
Note helper has one purpose, to do this. It's reason for being is to tell you what the frequency value of notes is [plus or minus 0.5hz]. And while it's feature set is limited, we all dislike bloatware, don't we?
One of the best parts is that it's portable—it doesn't have many dependencies at all, so you can carry it around on your portable media with you where ever you go.