1) It's not "Google's WebIntents", both Google and Mozilla are working on the project together[1], after coming up with the same idea separately at first.
2) This doesn't compete with WebIntents, which is about application selection. WebAPI is about device integration which is compatible with WebIntents. You could, for example, want to make a call and be prompted with several Phone app choices (thanks to WebIntents) and then dial the number and make the call (thank to the Telephony API which is part of WebAPI).
2) This doesn't compete with WebIntents, which is about application selection. WebAPI is about device integration which is compatible with WebIntents. You could, for example, want to make a call and be prompted with several Phone app choices (thanks to WebIntents) and then dial the number and make the call (thank to the Telephony API which is part of WebAPI).
[1]http://www.readwriteweb.com/archives/chrome_and_firefox_work...