If you’re one of those people whose heart starts beating fast at the imminent arrival of a new Apple product, or if you just care about the future of one of the valley’s iconographic tech companies, be sure to tune into the “Apple: The Next Generation” forum hosted by Knight Ridder’s SiliconValley.com. They’ve lined up an all-star cast for the weeklong chat , including Sun’s Tim Bray, Andy Hertzfeld (fomerly of Apple, now with Google), Michael Gartenberg from Jupiter, Daring Fireball’s Jon Gruber (one of our favorite Apple bloggers) and the Merc’s very own Dawn C. Chmielewski and Dean Takahashi. Master of ceremonies is Good Morning Silicon Valley’s John Paczkowski. It should be fun.