"The important thing to take from this is, whether it is Krypton or DevExpress, they all offer a
suite of controls
not just the one which you are doing at the moment. "
Both of them offers solution to One problem and sells them. Devexpress has a good competition to my product. Both of them produces Ribbon Controls. All of them has more than one control but presents just one solution.
Your are right about people not knowing how to use the in-built controls. In fact, I told them how to use it. Before emabrking upon SmartLayouts, I did understand the in-built solutions. But none of those in-built options are surrounding controls aware.
So my opinion was that we need something better. Hence SmartLayouts born.
"I used to run machines running Sun OS, Linux, Mac, the Amiga and others." May be you should experience once SkyOS, ReactOS and Syllable/Atheos

. They have really done marvellous job.