$1,476,372USD and 6 days more -> why do I not feel happy to see this reach 1,5 million?

From the somewhat shady explanations about SD -> SDHC -> SDXC we can deduct that once your reader supports SDHC it will be fine with SDXC cards.

http://kb.sandisk.com/app/answers/de...-compatibility

About the max speed achievable , there is UHS talk and it is not clear which readers will give best performance.

Jolla is kind enough NOT to limit the internal memory by only offering 16GB - 32 GB - 64GB options wich cannot be expanded when need arrises afterwards. Jolla is not forcing the users straight into some cloud storage or to think very hard about the life cycle / memory requirements of their purchase.

The user should understand that having to reformat their new ex-Fat pre-formatted SD card formaking it Sailfish ready is a very small price to pay compared a plausible scenario of running out of fixed memory and having to sell and re-purchase the same but next higher internal memory version or use cloud storage. Even if they have to ask assistance for this.

At the current price of Micro SDXC 64GB cards I don't see users swap them all the time from computer to camera to tablet. Those cards get put and forgotten by common users , just like the HD in their laptop.
Besides, the best form factor for regular swapping is normal SD not Micro SD. (Micro getting lost blown in the wind or swallowed by pet, need for unreliable adapter card, wear on more fragile contacts etc..)

The question is:

Will Jolla integrate instead of paying exFat license integrate a nice GUI formatting SD formatting tool
and last but not least, will the SDXC media itself wear quicker if not using the exFat file system?

For those with warranty concerns:

I recently got RMA exchanged a 10yr waranty 64GB ultra Sandisk that had been behaving bad from the start after I have proven the write errors through some Windows tool that will write chunks of 1GB on the card and verify.

Yes they ask what you did / tried with the card and I told them I tried all different kinds of file systems (ext 4, ext 3, btrfs, NTFS etc) in Nokia N900 and PV808 (devices to "only support" less than 64GB capacity)