What iOS apps are required for iHappiness?

I am the Koontz family's designated Apple fan-boy.  The one that had the first iPhone, the one that talked Mom into buying an iMac.  But lately it has occurred to me that the title is being usurped.  First it was my mother-in-law that got the first iPad, when all I had was an iWant.  Now my mother has an iPad 2, I still only have iEnvy.

While they have the new shiny toys - I've got more apps on my iPhone than they do.  However there are a few iPad only apps I cannot get.  Mom told me to get the NC Muesum of Art's app for the Rodin exhibit.  It is only avaliable on the iPad.  But the HD video is awesome on my MacBook Pro (bigger screen than the iPad).

Rodin: The Cantor Foundation Gift to the North Carolina Museum of Art

So what are the required apps for happiness?

A list:

• Filxster - movie & theater search
• IMDb - Internet Movie Database
• Pandora - customized / personalized radio station
• Kindle / iBooks / Audiobooks / Google Books
• Facebook / Twitter - social media tools
• All text pictures pro SMS pictures - text pictures
• Dual Level - yes if you need a bubble level, reach for the iPhone
• Convertbot - converts units to other equally useless units, like $ => Yen, Yards => Meters
• MailPhotos - utility to email groups of photos
• iFlashReady - photographic enhancement
• Comic Touch - every now an then a cartoon balloon must be added to a photo
• Star Walk - for knowing your stars and who they hang with in the sky (not talking Hollywood here)
• NPR News / Public Radio / AP Mobile - staying informed
• Dictionary / Wikipanion
• Audubon - for identifying those pesky plants & animals without name tags