Outside the iOS line, Mac OS X 10.0 (Cheetah) is a good example of something that shipped before being really done.

In the iOS line, I'd say iPad 1 is woefully underpowered with RAM. Browsing in Safari suffers due to repaints when scrolling and page reloads.

In 20/20 hinsight, shipping iOS without an SDK and even without a plan for an SDK. If they haven't introduced the SDK, iPhone would probably never had taken off.

The initial iPhone OS, before it was called iOS, shipped without copy and paste or 3G at a time when all mobile operating systems had both copy and paste as well as shipped with 3G on their premium models. The first iPhone certainly qualified as a Premium Device.

If you held the the iPhone 4 the wrong way, the signal would plummet. This was under Job's watch.

The early firmwares were buggy as hell, it would crash from time to time. Heck it was imposible to type with keyboard lag that could be as bad as 10 SECONDS.

My first tweet ever was abot how firmware 2.1 fixed many of this issues, mind you this was 4 years ago

The original iPhone didn't have copy/paste (and it was right to ship it).

Also, if things didn't go the way they did, then the lack of flash on the original iPhone might have been viewed that way if Apple had to back peddle.

(In retrospect, Apple won that gamble, because it wasn't that much of a problem).

MobileMe.