I’m going to keep this short and simple. Apple is going to buy Twitter – here’s why:
1. There have been very few cases of such a deep level of integration into iOS with a service provided by a company many orders of magnitude smaller than Apple.
2. When such integration has taken place, but Apple didn’t acquire the company, it eventually replaced its service. Example: Skyhook & Google Wi-Fi based geolocation, now replaced with Apple’s own database.
3. Apple needs a secure way to counter-balance Facebook (thanks @om for that one!). If Twitter remains an acquisition target much longer, Facebook or Google could reel it in.
Now I just wonder if @jack will want twtrr.com back… (yeah, out of a freak coincidence, I own that one!).