The D10-100s just had an update recently, they seemed to have moved _from_ the color logos, etc, _to_ the 'new' blue/mono-logo scheme.
I too liked the color logos (only seen them on the D10-200, my 100s always had the mono logos and blue gui), I can only assume this is meant to unify their interfaces for lower support costs (they only need to know one interface for D10s, not 2 or more), that, and they probably save money making their own interface.
I also suspect they want some features to be exclusive to their 'advanced' equipment, the D10s are their bottom of the line STB (afaik), so, I wouldn't expect to see a feature like mini guide or color logos on the D10 anytime soon.
My D10-200 had an old version which had the color guide, among other nifty things (like more individual favorite lists (profiles)), But, I do not recall seeing if the 200 had a mini-guide, since it is in a room I do not frequent (and now it's too late since it now has the mono-logos and blue gui).
They _seem_ to release an update every 6 months or so, note, however, that that is based on my short time owning one.