Regarding your question about Selection, we are still working on these. I don't have a definitive timeframe to share with you right now. One of my colleagues, Amy Forstrom , is doing a lot of work in this area and would be thrilled to talk to you (or others) if you'd have any questions or feedback around this area.
I just started 'going mobile', and really like it so far. I do have a suggestion however. It would be nice to be able to zoom out in Tableau Desktop when using Device Designer. I generally use Fit Width to make phone layouts, and they're often quite tall. Because of this, I have to do lots and lots of scrolling, which gets old quick. It'd be really nice if there was a way to create a rough layout while zoomed way out (like 'whole page' view in Word), and then zoom back in to finesse the layout details.
Glad to hear the experience is going well so far. Thanks for your feedback about Device Designer. I'm adding my colleague Carolina de Mello e Souza to this thread so she sees your feedback as well.
We are looking at this exact solution for Tableau Mobile over Citrix. Hope there will be some updates soon on this.
I have voted for this idea on the Ideas page.
Do you have an update or ETA on containerised xenmobile support for Tableau App?