Yes, indeed. Don't know about your side of the pond, but here in Europe Ericsson (and later SonyEricsson) was a major player in mobile phone business (together with Nokia).
Even in Symbian times they had their own custom UI engine different and incompatible to other Symbian solutions. They could afford it.
Then fortunes turned, they begun to shrunk, lay off people and otherwise "increased their ability to compete".
I.e. the same stuff which was happening to Motorola. But while Motorola draw the right conclusions and produced their Droid with almost vanilla Android 2.0 (but on time), SonyEricsson management first needed to realize the simple fact, that thinned out development can't move at the same pace as in the old times.
They are learning it now the hard way. I am not sure if they did learn enough.