Engadget says its official (from WWDC):

• $199 for 8GB version
• $299 for 16GB version
• contract required
• voice plans start at $39.99
• personal unlimited data $30, business unlimited data $45 (on top of voice)
• 3G
• thinner edges, but phone is a bit thicker
• flush headphone jack
• 2.0 firmware
• Apple claims 35% faster page loads than Nokia N95 or Treo 750
• 300 hours standby
• 8-10 hours 2G talk
• 5 hours 3G talk
• 7 hours video
• 24 hours audio
• "A-GPS" = GPS + cell tower data
• push email and contacts

I would love to have one... and its becoming available in Canada on July 11th... but the contracts... ouch.