I've long wondered why twitter doesn't do an auto complete for @mentions. Usernames are often hard to remember which makes the updates tedious to create. Nice work on FaceBook's part.
I'm pretty positive when it first started out it did. I'm sure it was too much stress on their already crippled infrastructure and the feature was disabled
I've almost entirely moved to using Facebook status updates instead of Twitter anyway. Allowing photos and auto-previewed links and being able directly see responses seems much nicer to me.
Twitter is in trouble because a website with more features (photo albums, apps, blah blah) and a larger community has been consistently adding all of twitter's 'killer' features to their own site.
Question: What's to stop facebook from adding public status updates or any other distinct twitter feature?
Answer: nothing.
And blogs had 'more features' than Twitter too, but as they have proven, artificial constraints can make something popular. The minimalism is pretty much the point.
Can't a site copy another site without it being an attempt to destroy that site? Facebook and Twitter are used very differently, and it would take a lot of backpedaling for Facebook to begin to usurp Twitter's userbase—which is doesn't have to, since the average Twitter user has a Facebook account.
http://www.techcrunchit.com/2009/05/05/rest-in-peace-rss/
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