One day later, I agree that the current logo is really great, and the "a" T&C logo is a bit undefined. The Dash "D" truly is iconic, or will be once the product is actually usable by everyone (more work on this please) and the forward leaning makes it look like it's really fast. I do like the...
There are many problems with the O&M logo as Kanuuker has said above.
To me, the chained D's look like they wouldn't scale very well as a small icon. Also, I agree that it looks like a backend corporate logo, Like Proctor & Gamble vs Tide, which is a product offered directly to consumers.
The...