Airbox
I've seen the Airbox system first hand and it is certainly nothing like Memory Map. Sure it can display CAA charts however you can tell the programmers have kept pilots in mind when designing the menus and data input screens which easily allow for use in a cramped cockpit environment.
The version of software I saw had a full European airspace database on it with visual airspace warnings, terrain ahead, extended runway centre lines and whole bunch of features not available on MM.
I've also been informed that they will have full European charting for the June launch with weather and NOTAM features added later.