I am working on my first IOS game and before I got too far along I wanted to see where do I check to see if the game name I want to choose is already in use. Is there a definitive place like whois for domain names that I can check to see if the game name is already taken?
Your name doesn't have to be completely unique, but it will be harder to find your app if there are other established apps with a similar name. Google the name you want and see what games come up.
Create the game in iTunes connect. It wont let you create an app with a name that is already taken. Once it is set up it is fairly easy to "squat" on the name.
Keep in mind, you will need to upload a version and at least reject it if you need to hold the name for an extended (forever) period of time. Learned this the hard way.
Otherwise, you lose it after 3 to 6 months.