As for contacts -- I use Jolla without SIM and had no option in Peoples to import from file.

But ... Installed "Files" and just went to Download dir, clicked on VCF and an option to import contacts appeared. Import was instant

And complaint -- imported contacts have a lot of info's that Jolla show, for ie. google talk account, skype account and so on. ATM there is no way to edit contact and remove such info.

Option to merge contacts is also very wellcome!