What if there was a Web service similar to plusplusbot.com that could collate car registration numbers in the context of good or bad driving. If you spotted a bad driver you can tweet their registration number with x hashtag (possibly including location) and a positive or negative modifier that would then classify that number.
If critical mass is achieved you could have a very useful resource that could help law enforcement in finding bad drivers and encourage good drivers through promotions.
Potentially insurance companies can use this as well to find out if potential clients are good or bad bets.
Micro-blogging service twitter provides a great platform for chess players to play one another. Simple notation can be tweeted using the @username format.
But what if an Internet application was developed that could read these tweets and visualize (and auhenticate gameplay)? Furthermore, if the user makes a move, the system could send the tweet to the other user’s account making for a seamless gaming experience.
As the games take place in an open, public format, it would get interesting if a group of users could play another group or a grandmaster through a tweet and vote system.
More and more twitter users are starting to use the hashtag #brandplus or #brandminus to report brand experiences.
There is an opportunity to build a live tracker using the twitter API.
Imagine that the system would take each brandplus and brandminus tweet and then plot them on a map. The more plusses a brand gets the bigger and greener it gets on the map. The more minuses it gets, the bigger and redder it grows based on the net score.
Clearly it would help if users were encouraged to follow some sort of syntax:
#[brandplus or minus] [brandname] [location] [reason]
Potentially a map could be a useful way of representing the data but there might be other ways as well. Users might be given the opportunity to toggle various viewing modes.
There is room for a twitter client that can provide a complete user interface experience that resembles something like Facebook. One suspects that such a client, in combination with already established twitter services like twitpic, would be able to provide a rich one stop solution, where tweets could be represented beautifully, in a rich graphical mode, where re-tweeting, DM’ing etc. have clear buttons.
Of course, the original twitter would still work, but for those users more used to thinking in terms of Facebook, this would really help them understand the power of twitter and thus help twitter expand its userbase.
This tweet by Valdis Krebs gave me a thought. Indeed twitter’s self-organising power does give it the potential to supercede many structured Web services.
Perhaps there is an opportunity for a very, very powerful link aggregator to be built using the twitter API. All it needs to do, is scan the public tweets for links, extrapolate them if they have been shortened and index them in a sexy interface. The most tweeted ones would rise to the top. Then, give the community the ability to tag them and you can build a link aggregator that can indeed become more powerful than the likes of delicious, in a matter of weeks.
What if a rich-internet application existed that could could compile code from tweets? It would be an interesting challenge to coders to write code in 140 characters or less to make the client do amazing stuff.
It could be an abbreviated language, with a simple subset of instructions that could economise on characters used.
iPhone + twitter =
Wouldn’t it be great if twitter was able to draw more metadata from tweets sent from smart devices like the iPhone? For example, it could check location, weather and even snap a picture to accompany your tweet. You could set how much of this information would be public.
It strikes me that the next evolution for twitter would be able to make the actual tweets more layered. Smart devices might be the way to do that.
I’ve had this Minority Report style vision of somebody arriving home, pouring themselves a drink, plonking down on a couch and watching a big screen of his friends’ twitter updates. Which naturally made me think that Twitter in screensavers would a be a good idea.
Obviously this cannot be a new idea. A quick Google reveals the obvious (D’oh).
But still, I think the concept can be pushed if enhanced by beautiful design. Tweets appearing coloured bubbles according to the emotion contained within, or the friend’s gender or relationship to you.
Could also be an amazing installation at a party. Get people’s twitter feeds up in a club or other venue and people can communicate across a room. People could even wear their twitter names on T-shirts to facilitate flirting 
