In case you've missed it, Microsoft has published its application categories for Windows Phone 7. They are as follows
- Books & Reference
- eReader
- Fiction
- Non-fiction
- Reference
- Business
- Entertainment
- Finance
- Games
- Action & Adventure
- Board & Classic
- Card & Casino
- Family
- Music
- Puzzle & Trivia
- Shooter
- Sports & Racing
- Strategy
- Xbox Companion
- Health & Fitness
- Diet & Nutrition
- Fitness
- Health
- Lifestyle
- Community
- Food & Dining
- Out & About
- Shopping
- Music & Video
- Navigation
- News & Weather
- Photo
- Productivity
- Social
- Sports
- Tools
- Travel
- City Guides
- Language
- Planning
- Travel Tools
Tags: Windows Phone, Marketplace