One can get an Apple Developer connection by signing up for the Apple Development Program. This program allows for users to develop apps and software for Apple products.
If you are developing software for an Apple product you could describe yourself as an Apple developer. These days you would probably be more specific and say you were a Mac developer or an iPhone developer. Joining Apple's Developer Connection (See links below) will enhance your status as a developer.
The iPad was developed by a group of engineers at Apple. No one has been singled out as inventor or developer of the iPad
for Mac developer and iOS developer, yes. it is free do join Safari developer though.
Because one starts with an "a" and one starts with a "w"...
The Apple iPad is hardware, not software. As an Apple developer, you can purchase a IOS Software Developer Kit. It has a development platform for the iPad, iPhone and iPod touch. The developer kit is free to download, but you must enroll in the Apple Developer program, which costs about $100 per year. The SDK is designed to let you write and test your own apps.
You usually have to be a registered developer with Apple.
You need to be an Apple developer which costs $99.
nothing
Steve Jobs
Anyone can develop software for Apple's computers and iDevices it does not matter if you are an individual just starting out or an established company.
The developer of the iPod Shuffle, Nano, Video, Photo, etc. is Apple Inc. www.apple.com is there official website. All their products are original and no over manufacturer has made a product using Apple software, eg. their range of Mac computers.
You would have to ask an Apple developer. Since the source is closed, nobody outside Apple knows about it.