There are a few things like lists that don't quite work right in desktop Chrome (won't pan/scroll) without having the user agent overridden to something like iPhone as far as Touch apps coming directly out of Sencha Architect. I don't think Architect supports profiles yet.
Edit: It looks like this is something the build process (Sencha Cmd) would take care of instead of the Desktop Packager.
Yeah out of the box you're right. We don't give an option to override or augment the user agent string, but it's been a thought to allow for it; this is a good use case for it. I'm not certain if Sencha Cmd is a valid option, but I'm certain there is a way to monkey patch the Touch framework. That I'll leave as an exercise or someone on the Touch forums to help
Step 1: Launch app
Step 2: Try and use touch screen to engage with application
Step 3: Try and use mouse, nothing
Step 1: Launch App
Step 2: Use mouse to engage with application
Step 3: Use touch screen to engage with application and it works, kind of, thinks like draggable objects do not work
The culprit IMHO seems to be that the current version of Desktop Packager's version of chromium is outdated and missing features, and that between mouse/keyboard and touch the focus is not properly being delcared. This occurs if I run the app in fullscreen or as a defined window size and placement.
The same app runs and functions very well in the latest version of chrome, btw, including with h.264 video which Sencha does not (per my other thread).
I've tried to engage with Sencha's presales support/engineering people but didn't get very far with them.
I was going to post my own thread about touch and the packager, but I saw this and decided it was very relevant and related.