In my bitcoin quest I have done alot. Bought mining gear with 2 different partners. Kept the gear at office of one partner. Also had gear at place owned by friend of other business partner. We lost money on both mining operations. Luckily we did not sell the bitcoin from one operation, so now those coins have good value. Also lost a bank account probably due to bitcoin transactions. So only have 1 bank account left in the US. I also have attended bitcoin conferences. I rarely do anything bitcoin related from my phone. Mostly use laptops whihc are getting pretty old. While I have tried other businesses in bitcoin right now I am focusing on just buying bitcoin when I have available cash. And spending time reading on bitcoin to figue out what I should try next...