So I'm headed to a homeschool convention later this month and I ALWAYS spend too much money on books because I'm a huge impulse shopper! So what I really want is a mobile application for PBS! Then I can stand in the booth and enter books straight from my BlackBerry! How's that for a big WISH?

They were reading your mind.  Look at the second column of links at the bottom of the page.  There is a link for PBS mobile\PDA users.  It works with an iPhone.  I'm not sure about a BlackBerry.

Hmmm... but that link isn't visible from my phone. I wonder why? I can use my browser to access the site, it's just not too mobile friendly.

The mobile site is very limited. You can search for books, but cannot add books to WL or RL, nor can you order a book or post books. I only use it to view my WL when I'm in a book store.

Download OperaMini to your BB.  It is another browser and you can access the whole site on it.  On the weekends my family goes to visit my father-in-law where there is no internet.  I use my BB all the time for the site.  I can order books, WL books, put them on my RL, post in the forums, everything I can do on my computer with OperaMini.