Please consider querystring support in 2.x

[eluser]coldclimate[/eluser]
[quote author="Phil Sturgeon" date="1277913614"][quote author="Crimp" date="1277913451"]Why segments are better?
CI is designed to work with segments, great. We just need a way to easily throw in some ?foo=bar for Twitter, oAuth support, Facebook Connect, etc without recoding our apps or hacking it with hooks like mentioned above.
Let's put our heads together and come up with a solution. "Go team!"[/quote]

I can't agree more.
If building your site from the ground up and the lack of query strings is rarely a problem (or hasn't been for me ever). Once you have to deal with other people's code (especially my current nemesis Facebook) and you do have to hack about a bit. Using Elliot Haughin's new facebook library we've had a lot of success, but it's still very much feels like hacking about, not clean coding.

My ideal solution would mean that segments worked via routes for pointing to controllers, methods and passing in data, but that tagging a query string on the end would then make these variables available to that controller/method and not end up in 404's or routing problems. We've nearly got this by using a combination of $config['uri_protocol'] = "PATH_INFO"; and modifying $config['permitted_uri_chars']