Clearly with little information to go on, and nothing more than speculation regarding the means of connectivity, I thought it would be a good idea to start a thread to open discussion around the sort of "Other Half" concepts that could be used with the upcoming Jolla Handset.
Certainly videos of the "I Am The Other Half" event and associated interviews have indicated a range of existing ideas from lens and flash attachments to theme and content options.

Of course the first to come forward for those of us who still hold the N900 dear to hearts (and hands) would be a qwerty slider "half"

As my graphic design skills are about as hopeless as my coding skills, I'll be more than happy to leave it for others to offer renders!

If nothing else, this thread may provide fertile ground as a rudimentary "suggestion box" to Jolla for further consideration.