I used to have the same concern but now I think it was silly. Just focus on your trading. You will lose your edge (if you have any) anyway in the future..... Market changes all the time!
My location is Asia and I had a latency issue with Rithmic. Changing server to Singapore or Tokyo solved my issue then. I used many different platforms with same Rithmic connection and all platforms were affected by this issue.
So many copy cats killed it.... too bad. Glad to see Apple iPhone survived and prospers.
By the way, I heard it's inventor died while he rode it. Found his body in a lake with his Segway years ago....
Now I recommend people not to learn trading. Considering time, effort and money taken, I think it's not worth to most people.... Better find a decent job.
As far as I know, forex's liquidity is highly exaggerated. Its liquidity is actually your broker's liquidity. Also, their liquidity providers don't necessarily have responsibility to accept your orders. That's why toxic flow or bad fill can happen.