Need a Calculator for your iPad? I know just the guy...

You may have noticed that even though I have two kids, they don't often make appearances here. I don't post photos or even mention them without their permission because, you know, they're not the ones writing a blog and they have the right to some privacy even though Mom's an author.  But today I've been given rare clearance to blog about something cool in the life of my 14-year-old son.  After months of teaching himself how to write code for iPhone and iPad applications, one of his apps has ...