tips on how to integrate gatecamper in your applications
Existing applications
If your application currently stores API keys, it's easy to convert. Simply sign up your application, change your application's API URI, and then store Gatecamper keys instead of API keys. You can easily accept both EVE API keys and Gatecamper keys by storing a flag with each key and conditionally using the Gatecamper URI.
To make it easier for users, you can link to the signup process for your application directly. For example:
http://www.gatecamper.org/key_forge/get_started/appid?redirect_on_finish=http://www.mysite.com/finish/
This will take your users back to your site when they're done at Gatecamper, and will step them through creating an account, adding a key, and creating an application key.
The Gatecamper API will work in nearly exactly the same way as the EVE API- there are additional error messages and so on, but all the data is maintained exactly as usual.
New applications
Finding a library which supports Gatecamper may help when writing a new application. Libraries with Gatecamper support are listed here, on the libraries page.