[wieghant]

> It's better than it once was, but you're going to have to check every single feature of HTML5 you use to figure out which browsers implement it

There's tools for that and i'm pretty sure just writing plain html and css or some compile-to-js would have shaved off significant time from that 8 month full dev time.

[mike_hearn]

It wouldn't have been possible to do as a webapp at all, as the app in question was a peer to peer app that spoke a fairly complex network protocol that doesn't support WebSockets (Bitcoin). But even if that issue hadn't existed, the development time went mostly on logic and p2p/networking issues. HTML wouldn't have helped and JavaFX supports a dialect of CSS2 anyway.