Differences between 03-07 and 08-09

[jsbihn]

Ok, so what I am reading is that the platform is the same, and just about everything is the same, it is just that the 08-09 had some smoothing out?

So basically everything that a 08-09 has could bolt into a 03-07?
And also, there isnt a "generation" change on them. Just the typical "oh hey we found out there are some problems with this and that from the first years, so lets fix them now" revisions?