An software performance at North Point Community Church highlights the pros and cons of the instruments. The musicians are not generally as lively as they would be with acoustic instruments: especially the guitar players looked cramped. Some of the sounds were better than others. Still the fun of the performance for me was the accessibility of the instruments: anyone with an iPhone or iPad can find these apps, and pile more. Multi-instrumentalists could become more common even on acoustic instruments with the exposure to software versions to play with first. No one is likely to stop playing the guitar for an iPhone version, but it's fun to have sounds in your pocket.