I haven't built it out to verify, but I would expect rendering several webviews (e.g. one for each cast in a feed) would be pretty expensive from a CPU/memory perspective, since you're effectively spinning up a dozen little mobile Safari browsers. That would be less of a problem if you're only using it for one view,

but at a minimum it will add some awkwardness to your code, since you'll have native Javascript + Javascript that gets injected into the web view, which will either mean you'll give up type safety, auto-complete, etc. or you'll need to setup a whole separate build process to compile the webview Javascript.

Searchcaster