We all know that Apple has delayed the release of Merom based Core 2 Duo MacBook Pros and MacBooks. This might be due to unacceptable thermal test results in Apple's much thinner form factor making it necessary for them to re-tool the lineup. Or they've simply decided to hold off until they could use the improved Santa Rosa chipsets. I've been wondering what kind of temperature readings people are getting on their Merom based Core 2 Duo iMacs? It would also help to note what video card is installed in your machine along with any temperature readings for that card. If we do not see a release of Merom based notebooks within the next few days or weeks, then heat may be the issue.