Two particularly interesting topics caught the attention of the Apple-focused blogosphere this week. iSuppli released a projected tear-down cost list for the 3G iPhone, sparking interest in the new $199 price point that contract signing buyers will pay come July 11. Also, the Mac Business Unit at Microsoft, which is one of the world’s largest Apple software development organizations, is apparently on a hiring frenzy for Apple experts. When iSuppli tore down the original 8 GB iPhone last year, it estimated that materials and manufacturing cost $226 per unit.