The 7-inch device is ideal for reading and exploring a variety of great content including books, magazines, interactive children's books, apps, access to top video and music services, e-mail and Web browsing.

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And unlike the earlier PMP-1000, music continues to play even while browsing the file manager to add new songs.

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As wireless customers spend less money on plain-vanilla cellphone voice calls, carriers are betting that data and entertainment services like text messaging, over-the-air music stores, streaming video and mobile Web browsing will lead growth.

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Announced earlier this month, the Cruz touch-screen device also plays video and music, and provides a full color web browsing experience.

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The rx3100 - They're dubbing the rx3100 a "Mobile Media Companion", and it comes with 64MB of RAM, built-in 802.11b WiFi and Bluetooth, a 3.5-inch LCD screen, an SD expansion card slot, and software for wirelessly browsing your music, photo, and video collection from anywhere in your home and so you can use the rx3100 as a universal remote control.

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