Agreed with most of your points except "mostly painless." Consider that an anchor tag is both presentation and event handler -- basically all necessary application logic -- in one line, and intuitively understood in its integration with URLs. The "one line" to start Intents in Android (usually at least two, and likely more, depending on how much other data you need to put in the Bundle or Extras or URL objects) is only the execution part, usually buried in the event handler which itself is attached to a View object which itself was defined in a layout.xml or some other visual declaration.

Heavy.