"so far my experience with them has been positive. One was actually something I was interested in and might not have discovered, the others are minor irritations easily dismissed. Twitter have done a good job of integrating this into the web experience, but I'm curious to see how/when they bring it to the mobile/API world... most of my twitter usage is on mobile (Windows Phone and Android clients) followed by via API (Digsby IM client) so I'm hoping they have an elegant solution planned for there as well" - offbeatmammal