Hello!
My name is Manuel Correia and have been designing videogames for the past four years. The most popular game I've designed is 8 Ball Pool (iOS, Android, browser), you might have played it!
I also design my own boardgames on the side (http://gamesbymanuel.com/). It started as a way to learn more about game design, but it has evolved into something bigger. The social aspect of boardgames really drew me in, and now I'd rather play a boardgame any day of the week.
All my videogame releases were sold digitally, so I never felt they were tangible. I'd love to publish a game you could hold in your hand.
I'm currently working on a small drafting game focused on deduction, and solving a crime. I'm trying to see how small it could go, and it's currently at 20 cards.
You're in luck! There are a lot of similarities between the design process of turn based strategy games between those two mediums.
My main advice is related to your business model. Look into that before jumping headfirst into making your game. Unfortunately, the industry has moved past the simple joy of buying a game and playing it. The users now tend to expect really low prices or, ideally, getting the game for free.
If they consider your price unreasonable they'll just pirate it. The other option is making it free, and getting the money from in-game advertising and microtransactions. You need to design a system which allows you to add to the game. Frequent updates and new content keeps people coming back, and so does competitive play.
The way you sell your game will definitely change the way it is designed, so defining it early will set you on the right track.
I have some more warnings about mobile games/stores, working in teams and in studio environments, but I don't know enough about your situation to know if they would be of use!