The rz1715 - Their low-end Mobile Media Companion, the rz1715 only has a 203MHz processor, 32MB of RAM, a 3.5-inch LCD screen, an SD expansion card slot, but no WiFi or Bluetooth.

ENGADGET: The new iPAQ Pocket PCs are official

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.

ENGADGET: The new iPAQ Pocket PCs are official

The rx3700 - Another Mobile Media Companion, the rx3700 has the same media and universal remote software as the rx3100, a 400MHz processbuilt-in WiFi and Bluetooth, a 3.5-inch LCD screen, and an SD expansion card slot, but also has a built-in 1.2 megapixel digital camera.

ENGADGET: The new iPAQ Pocket PCs are official

The X50v, which has a 3.7-inch VGA resolution LCD screen, 624MHz processor, 64MB of RAM, 128MB of Flash ROM, Compact Flash and SDIO expansion card slots, 802.11b WiFi, and Bluetooth.

ENGADGET: Dell's Axim X50 Pocket PC arrives

The X50 416MHz, which has a 3.5-inch, 320x240 pixel LCD screen, a 416MHz processor, 64MB of RAM, 64MB of Flash ROM, Compact Flash and SDIO expansion card slots, and Bluetooth.

ENGADGET: Dell's Axim X50 Pocket PC arrives

The X50 520MHz, which has a 3.5-inch, 320x240 pixel LCD screen, a 520MHz processor, 64MB of RAM, 128MB of Flash ROM, Compact Flash and SDIO expansion card slots, 802.11b WiFi, and Bluetooth.

ENGADGET: Dell's Axim X50 Pocket PC arrives