I don't see what's the problem with Tacx developing apps for other platforms as an alternative for TTS.
I've been using TTS for years and I agree with you when you say it's buggy .. heck, it's buggy as hell! ... and the process of calibrating everything and firing it up is time consuming .. it's soo darn slooooooww! As consumers we have a right to demand updates but there's so much that can be done in the windows multitude of hardware/software system without constant rewrites. It'll never be perfect, no windows software ever is.
I do own an iPad and because iOS is way more stable and faster to get up and running than any windows system .. YES, I would very much welcome an app as an option to workout with my iPad (and my iPhone) and my Bushido.
Bottom end is, I need to get my workouts done ... and I need them on the cloud for my coach to follow up ... and I dispense the slowliness of TTS on most of my trainings cause I just got to get to work .. and to life!
Also, consider the odd traveling/family vacations/country house for the weekends, situation: It's way simpler to just take your bike/bushido and set it up on the porch using an iPhone and get your trainings straight to Garmin Connect or Strava or whatever, using the phone's or tablet's cloud/internet capability. It's neater. It's simpler.
Android users will benefit too, if Tacx goes down "that" road.
Support Tacx for going the extra mileage and giving us options.