In anticipation of tomorrow's opening of the Mac App Store, Realmac Software announced pricing for its line of Macintosh software that will appear in the store. In a blog post yesterday, Realmac wrote that it believes the Mac App Store will usher in more focused apps that will do one thing and one thing well. The days of Swiss Army types of programs may be winding down. Realmac also believes upgrade pricing is a thing of the past with software vendors taking a cue from Apple that sells its