Steve Jobs was on hand today to kick off Apple's WWDC keynote. Lion took the lead, with no surprises except a $29.99 pricetag and a July ship date. iOS is getting a new "Notification Center"; Twitter is being integrated; he announced a split thumbable keyboard for iPads; wireless syncing; and a native IM system for iOS devices, shipping in the Fall. iCloud will be free, syncing apps (Mail, Calendar, Contacts and iWork apps) across devices. Photostream is iCloud for pictures. iTunes iCloud will let you re-download your tracks at last, and iTunes Match will let you match your ripped CDs to Apple's copies.