It's better, but I wouldnt say
much better. The LCI has the LED rear lights, the new automatic box (which aside from styling isnt all that different). It had the option of a sports auto gearbox, but very few of them have it. Slightly more bhp as well.
You may be referring to the updated idrive, which was introduced in September 2008. This is a huge improvement apparently, but not all LCI's have it (LCI's manufactured from March 2007 I believe):
http://en.wikipedia.org/wiki/IDrive#iDrive_Professional_Navigation_.28CCC.29
If i've missed something, though, let me know.