The Nokia 7510 flip phone is the second phone T-Mobile launched today. Some if most important features are the swappable faceplats and the semi-hidden external display. The clamshell will be available for $49.99 with a contract after $100 instant rebates and $50 mail-in rebate.

And here are the most important features of the Nokia 7510:

Fun

• Changeable face plates
• 2 Megapixel Camera with Video Capture
• FM radio
• Music player

Communication

• Wi-Fi and Mobile Calling
• Speaker phone
• Easy text input
• E-mail

Information

• Micro SD memory slot
• Photo caller ID
• Vibrating alert

Assistants

• Bluetooth® connectivity

via T-Mobile