At the moment there are only 12 shades available in the Shellac range but as you heard in the video thats all about to change with another 12 this August and an extra 36 next year, taking the total to 60.
In some cases the colour of the bottle is slightly different from the shade inside. I hear that the most popular in the UK are currently the deep Chocolate shade (which David tells me is nearly out of stock in London!), Negligee, a perfect beige buff (I'm trying this next) and the rose pink shade on the top right of the picture.
As it only launched globally a couple of weeks ago it'll probably take a while to reach all salons but keep your eyes peeled, it's coming to one near you soon!