[cognivore]

"From my PoV neither Java nor .NET is the first choice for UI. HTML and JS is. Especially for large multi-million dollar software."

Yes, it's multi-million dollar because that's the budget it takes to make anything complex.

[palindrone]

No. Because making anything complex that works on many platforms is very hard work. Take a look at WhatsApp (recently bought by Apple for $19 billion).