Why Foursquare, Rummble, bit.ly, Twitpic & dabr Will #Fail by Twitter in London

Foursquare, Rummble and other location services are a look at the future (the very near future) - when we’ll all know where all our friends & contacts are all the time. Problem is they require you to build a whole new network - and only us hardened geeks are on these services.

via london-twitter.posterous.com

Interesting but not totally persuasive arguments, based on Twitter becoming the Borg and consuming everything immediately adjacent to its core business. Possible.