The Rule of Four - Ian Caldwell & Dustin Thomason

Just finished reading this on the Palm, and really, really enjoyed it.  I needed a good potboiler while on the plane to and from California, and this really fit the bill.  In the vein of The DaVinci Code, and the plot is quite similar to American Treasure, but the setting on Princeton's campus is just captivating.  The writing itself is beyond just being good - it is phenomenal.  I really enjoyed the characters and particularly the budding romance between Tom and Katie.  I did have trouble with the time shifting from the past to the present a bit (a key point in following the love interest story), but I may have just missed something due to flipping on the PDA.  The story (and the writing) did get away from them a bit towards the end, but they pulled out a really nice ending.  I don't know if there is a sequel planned, but I'm hoping there is.  I'd like to read a little more of this.