Thank you Link & Wrequiem - browser issues have been a real blocker for most people. With the app I can finally play all my nostalgic web RPGs. (Except for Dragon Court, RIP)
Mobile is a good idea. With a clean simple interface I can see it gaining some modest popularity. The limited amount of buttons make it perfect for commutes and quick sessions. Wyvern is a more complicated retro multiplayer RPG that shifted to mobile and is still alive as a result (the optional in-app purchases support maintenance and dev costs). Let me know if you need advice - I work as an iOS and Android programmer in my day job.