A significant step toward full iPhone copy/paste functionality was taken today as independent developer Zac White recently unveiled his open-source solution: OpenClip, a standard for other iPhone application developers.

As iPhone Atlas reports, OpenClip is not a standalone app but rather a technology that developers can incorporate into their iPhone applications should they choose to participate. No applications yet support OpenClip, but it’s coming soon for the American Heritage Dictionary and Roget’s Thesaurus applications, Twitter client Twittelator, notepad application MagicPad, finance lexicon Wall Street Worlds, and a number of others.

iPhone Atlas goes on to report that iPhone users will be able to copy and paste from one OpenClip application to the next, but not to developer applications that aren’t participating or to Apple’s own iPhone apps, such as its e-mail client or the Safari browser.

Apple has, of course, acknowledged that copy-paste functionality will be officially coming to the iPhone, eventually, and OpenClip’s creator has recognized Apple’s plan.

“Instead of just waiting on the sidelines, we wanted to help iPhone users and Apple by being proactive and trying to help with a solution,” the site’s FAQ reads. “While just an interim fix until Apple adopts a systemwide version, OpenClip hopes to add to the iPhone user experience and provide a working case study for Apple, hopefully allowing (company engineers) to roll out their version more quickly.”