I'm pretty pleased with the lens selection Olympus has for the Pen cameras now. I took the 14-150mm, 9-18mm, 17mm and 12mm on my honeymoon in Italy and they worked very well. But there's one big hole in the lens selection for me - a fast, pro-level zoom. Specifically, I want Olympus to make a Micro Four Thirds version of the 12-60mm f/2.8-4.0 zoom. That lens is so good and so versatile. If there was a M4/3 version available I know I would use it all the time, just like I do when I'm using the Olympus DSLRs.
So what would you like to see Olympus add to the Micro Four Thirds lens lineup? Feel free to discuss lenses for the other EVIL camera systems, too. But personally, I'm most interested in the Olympus stuff since that's what I use the most. I'm hoping to use this thread as leverage to get them to make that lens next