Twitter changes RSS location of your timeline
The previous version of the location of Twitter Timeline RSS used to be at: http://twitter.com/statuses/user_timeline/11089002.rss
In the URL 174451720 is the Twitter ID number. You can find yours from http://www.idfromuser.com. Enter your Twitter Handle and hit submit to get your ID Number.
If you visit the previous RSS feed location: http://twitter.com/statuses/user_timeline/11089002.rss
You'll see that it says:
Sorry, that page does not exist.
Now, the URL is changed to:
http://api.twitter.com/1/statuses/user_timeline/11089002.rss
But this would be easier to remember:
http://api.twitter.com/1/statuses/user_timeline.rss?screen_name=seoppcsmm
One of the problem with later URL is, it'll break down if you plan to change Twitter Handle.