I am amazed at the way browsers use is changing. The buzz word most heard with web developers is HTML5, because it comes with a lot of promise for web developers.
But, there are challenges as well like
IE doesn't support the canvas tag
Developed apps must be compatible with browsers and devices
Its also a challenge for testers to test the apps built using these platforms, Though some apps are small but still they need to work well on all platforms. Time pressure to rollout apps ASAP still worsens the problems.
I have tried my hands to do some experiment using html5 and see what it is all about, my experience is that it is fun to play with these technologies, It doesn't need a heavy setup as with programming languages, You just need a text editor, and a browsers. The browser have very good debugging tools that makes it more easy. I found a lot of problems both from a developer's perspective and a tester's perspective.
I promised myself to jump to next level and build a nice game next time :)