WP central are reporting that Nokia Transport has been officially released for WP8 as Version 3.0; bringing with it a slew of new updates and performance enhancements. The most notable of which is the smooth transitions between map applications thanks to the fact that Nokia maps now power all apps in WP8.
Check out there coverage of the update here: http://www.wpcentral.com/nokia-transport-3-windows-phone-8
What I’m interested in seeing regarding maps on WP is something similar to Nokia Car mode which is available for both Symbian & Meego, which basically blows u the size of your most common used buttons while driving (music, phone, maps) making everything easier to navigate. At first I thought the image above was a new car mode for WP but it appears to be just a set of very large tiles.