This year, Apple has varied the release cycle of the iPhone. Previously, a new iPhone came around every year, making the purchase of AppleCare less important for some users who would upgrade to the next version anyway. Be aware though: If you purchased the iPhone 4 last June, as MacRumors points out, your free 1 year warranty is about to expire, and along with it, your last opportunity to purchase AppleCare.
Launch day last year was on June 24 – Those that purchased at launch have until tomorrow to renew their AppleCare agreements, or they will not be eligible to add a plan to their iPhone.
I’ve always strongly recommended AppleCare – it’s the easiest way to get a problem resolved with an Apple product, and simply owning an AppleCare agreement can positively affect they way you are treated in an Apple Store or with Apple’s telephone support.
In short, if there’s any chance at all that something might happen to your phone between now and the release of the iPhone 4S/iPhone 5, you owe it to yourself to be prepared. AppleCare is available for just $69 from the Apple Online Store. Alternately, you can instantly add a plan to your iPhone online through the Apple Support site by clicking on the “Check Your Service And Support Coverage” link, entering your serial number, checking your support options, and clicking the link to add AppleCare.