If you select "Events", choose "Movies", choose any movie, choose the "show on map" symbol, choose "Menu" you cannot get back to your last search, you have to go through all steps again. Same with "Find places", "Michelin" and "Lonely Planet"
If you didn't used the Maps Loader (so you've to download map data OTA) some parts of the map area you currently see are not shown (not downloaded?).
While in navigation mode you cannot change settings like "Keep backlight always on/off".
"Route point list" only shows start and destination but not turns, etc.
Create a route (i searched for a street name with house number, selected it from the list and after it was shown on the map i clicked on the top box and selected "Drive to" but happens too if you choosed a favourite). We are in 3D map view now. While route is getting calculated you see an arrow in the top left corner and an overlay on the top. If calculating is done, the arrow and overlay is gone, shows up again after ~ 30 seconds but is gone again after short period of time. It switches all the time.
Happens in all views but in Simple view you see nothing except the distance till the next turn, stop, etc. (no arrow at all).
This has to do with the compass. If signal is lost the "You" arrow points to north, regardless in which direction you should drive (in my example its south), thus its turning around the whole map if signal is back or lost.
If switching back from Overview mode to 3D map mode, the "You" arrow has to fly back to current position/route starting point from far away (takes some time). In navigation mode in 3D and 2D map view you can browse forward through all route points by sliding top2down or backwards by sliding down2top. If you're at the 2nd point (the first is the current position/route starting point) and browse backwards to the 1st point the "You" arrow has to fly back instead of immediately switching the view (like it happens if you browse from 2nd to 3rd point).
In navigation mode (walk or drive) a part of the "Options" button is flickering (well, to be precise its getting hidden, the part of the map below is shown). If the name of the current street is shown, its flickering too. Sometimes parts of the maps are also flickering.
Guess it has to do with the "WLAN" cross. If 3G is active the line is still flickering but only with 50% of its "normal" width. Happens in all modes except in Overview view.
In navigation mode in 3D and 2D map view with a compass signal the 1st route point is current position, the 2nd point is the first turn (or stop or ferry, etc.). Without compass signal the 1st route point is "Current position" (but direction to north), the 2nd route point is the route starting point (sometimes in the correct direction (south in my example) but sometimes in the wrong direction (north)).
In navigation mode the compass sign doesnt change from grey to yellow/red/green (but its turning around if signal is present).
Errm, i guess i lost some bugs but this is enough for now. Please check my Suggestions post too (will post it later, has to go out with my dog now, he's already waiting ;)