According to what appears to be a leaked product roadmap, it's beginning to look like a hot summer if you're a laptop gamer, on-the-go video editor, or need to crunch some seriously large numbers while traveling. From the looks of the roadmap it appears Intel is planning updates and price cuts for laptop CPUs through September 2nd, including the introduction of a couple Core 2 Extreme chips (2.8GHz X7900 and 2.6GHz X7800, featuring 800MHz FSB/4MB L2 cache) as previously reported. All told, the processor overlords will apparently debut nine new chips and cut the price on four, with slight changes in pretty much every category. Of note is the addition of the budget Celeron M540 and M550, which according to "sources" are designed for the much-loved Santa Rosa chipset. Stay tuned, as we'll be bringing you more laptop-obsoleting news on this next round of chips as soon as we get it.