The iPhoneophiles spoke and Apple listened; copy-and-paste will finally be heading to an iPhone near you this summer. But the real question many technology analysts are asking: Can Apple copy other features now in use by competing software providers and paste them into the supremely popular iPhone ecosystem? Partial answers were provided Tuesday in Cupertino as a parade of company executives not named Steve Jobs unveiled iPhone OS 3.0, with the newest features and enhancements to its best-selling smartphone operating system.