My Smiss contact told me it was too early to get the Pro and Mini version as they are not mass produced yet. They brought prototypes to CES2015 at Las Vegas though, but mass production should begin after Chinese new year only (so about end of February).
I managed to grab some early pieces of info: The Mini will be similar to the Goboof Alpha in the sense that it has a single battery cell and smaller form factor compared to the FM5. It will also have USB charging, very handy. It will be less powerful than the FM5/5S/PRO but even more pocketable.
The FM5-PRO is a direct upgrade of the FM5 platform and I'm really eager to test it, as I really wish my FM5-S had a lower temperature level or two (blue is too high for me already, I'm a flavor whore!)
The assumptions that were made earlier in the thread about why they don't release some products on the US market were apparently partly false: the real reason is because of their OEM partnership with Atmos and the fact they are under pressure to give them exclusivity rights. This is why you don't see the FM3, FM4 and FM7 listed on their site, as they are sold respectively as Atmos Orbit, Atmos LIV and Atmos Transporter (this explains why these Atmos vapes don't suck like their other products hehe)
@lostmyv6 : don't hesitate and get the FM5-S... or wait for the PRO!
@Bebop : do you tamp/compact your load? Strains (and even different buds of the same plant) as well as dryness, room moisture and temperature all have a big impact on vapor production, so it's normal if you don't get the same amount all the time.