Terry over at HardwareGeeks, is disapointed that the Apple SDK that was scheduled to be released soon is rumored to be delayed.

Many iPhone users, including yours truly have been anxiously awaiting this release. The iPhone is a great communications device but has limited platform potential without access to native 3rd party applications. Yes you can “jailbreak” the iPhone to allow 3rd party apps but the price you pay is a convoluted update process each time Apple releases a patch.

It’s anticipated that developers will submit their apps to Apple for certification and be made available through the iTunes stores.
What’s not clear is the pricing or how updates to the individual apps will work. I don’t mind paying for apps I find useful but in my mind the price point needs to be $4.99 or less. Oh and give us an MMS app . . . please ?  The iPhone has proven to be very popular and stands to gain in sales and user base with increased functionality. Make it so Mr. Jobs. 

So what does an delayed SDK mean to you? Basically you won’t get 3rd party apps anytime soon.