New iPhone features (all updates available today through a software update over iTunes)

• Maps with location (partnership between Apple, Google and Skyhook Wireless)
• customize the home screen (web pages, applications, etc)
• send text messages to multiple people
• support lyrics from songs you're listening to

iPod Touch

• adding five applications to the iPod Touch (Mail, Maps, Stocks, Notes, and Weather)
• Wi-Fi as the Maps triangulation
• customize the iPod Touch just like the iPhone
• Note: It's now built in to every iPod Touch, but older iPod Touch users will have to pay $20 for the features.

iTunes

• today Apple is introducing iTunes Movie Rentals (Touchstone, Miramax, MGM, Lionsgate, and New Line Cinema are involved, plus Fox, Warner, Disney, Paramount, Universal, and Sony)
• In February, Apple will launch with 1,000 films. But the company had to make a concession: Apple won't get them until 30 days after the DVD release. The movies can be watched anywhere, on any device. You can watch them instantly, they download as you start watching. You have 30 days to watch the movie after you download it, but only 24 hours to watch it after you start the movie.
• Library titles will cost $2.99. New releases will cost $3.99. You can also transfer movies to an iPod from your Mac or PC right in the middle of watching them,

Source: Live Blog from Macworld 2008 (CNet)