Many web sites (or apps) now have a mobile interface. If they detect that you are using a mobile browser, they automatically redirect you to a mobile-friendly version of the site. Every time I notice a site do this, I think "how nice it would be if my blog also had a mobile version that loaded fast on mobile phones!"
From the little I know, it's very simple to do that on a WordPress blog. But Blogger hosts my blog. I have no choice but to wait for Blogger to act on this. I sometimes (very infrequently) think of moving my blog to Google App Engine so I can have all the power I might need for customizing it. But then, maintaining a blog is a lot of work, and that's one of the primary reasons I use Blogger.