Open-source DB from Sun? At Sun Microsystems' annual meeting for analysts in Santa Clara, Calif., Chief Executive Scott McNealy showed this slide and raised the possibility of Sun offering customers its own database software. Credit: Sun Microsystems Related stories: Sun floats open-source database idea Apple is nixing iPhone parenting apps: Here's why: Let's dive into the saga of mobile device management, or MDM, software and why it's causing a showdown between Apple and iOS developers. What Amazon's one-day shipping means for you: Last week, Amazon announced it will decrease the standard shipping time for Prime members from two days to one. In this Tech Minute, here's how this change will impact your deliveries.