hard (but not forever) • Management ◦ Vision, ship first, keep going • Technology ◦ Notifications, multitasking, security, form-factor flexibility • Developer Tools ◦ Language, API, SDK, Android Market • Business Decision ◦ Open Source, Open Handset Alliance, compatibility, partnership • Acquisition ◦ Funding, infrastructure, leverage with partner • External factor ◦ Timing, cheaper & powerful mobile hardware, iPhone competitors(?, luck