MacRumors cites an unconfirmed report claiming that Apple is planning to release the iBook's Intel-based successor as soon as on Tuesday, May 9th:
An unverified anonymous source claims that Apple stores are receiving materials for a new window display that's labeled "do not open until Tuesday, May 9th." The source also claims that Apple has directed its stores to push iBook sales this weekend, presumably to clear out inventory.
Readers additionnally noted that Apple's web site mentions the MacBook in its navigation on the http://www.apple.com/ipod/ page. One of our readers has posted a screenshot on his blog.
MacOSXRumors also received an unconfirmed report last week which wasn't published. It claimed "imminent release of the "MacBook".

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