Meanwhile I got the new M-edge cover. Enclosed some picture of it.
Brief comments:
+ high quality cover
+ good finish
+ perfect fit (a flexible band at the upper edge of the reader pocket holds the devise firmly)
+ sleek (you can't make a cover much smaller)
+ offers good protection
+ nice inside finish of cover
+ access to all important buttons and connectors
Potential areas of improvement:
- flip bar access with the covers front plate is not optimal
- pen access from reader
- some will feel the front plate is still too flexible (I think it's OK - however if you want a 100% stiff one the irex cover has got that feature)
- In my opinion the closure mechanism could be more sophisticated.
All in all I consider it to be a very good cover with competitive pricing!