The Sony CLIE VZ90 has an interesting form-factor. It is a tablet disign. It is larger than the Sony CLIE UX50 and uses a slider design. This is not like the slider on the palmOne Tungsten T3, but rather a set of controls that slides out from underneath the display. It has a 480-by-320-pixel display, 3.8" diagonal; Palm Garnet (OS 5.2.1 Japanese version); 128 MHz Sony Handheld Engine 64 MB of RAM, 40 MB available to the user; 128 MB of ROM, 95 MB available to the user; Compact Flash II Slot (handles both memory cards and peripherals); Sony Memory Stick PRO slot; and built-in Wi-Fi (no Bluetooth). The Sony CLIE VZ90 is only available in Japan. Read our article Sony VZ90 Japan-Only Palm OS PDA for more information.

The Meazura™ Rugged Digital Assistant (RDA) combines the flexibility of the Palm OS® with rugged durability. Built to IP67 standards, the Meazura™ RDA is completely resistant to dust ingress, and is the world's first waterproof (not just resistant) Palm Powered™ device. The Meazura™ RDA is the perfect solution for users that need powerful computing performance regardless of their working environment.

• Operating System: Currently Palm OS® 4.1.2
• Microprocessor: Currently 33MHz Motorola DragonBall-VZ
• Memory: 16MB SDRAM, 4MB Flash (Expansion capable)
• Display: 160 x 160 pixels, 4bit grayscale
• Communications: USB, Serial and IrDA (wireless options available soon)
• Expansion Slot: MZIO™ 68 pin - multi format support
• Battery: 1900mAh Li-Ion
• Dimensions: 169.5mm (L) x 94mm (W) x 35mm (H)
• Weight: 430gm
• Sealed to IP67 standards

The AlphaSmart Dana Wireless is a laptop alternative for students that runs Palm OS. It has a wide display and a full keyboard. The Dana Wireless features Wi-Fi (802.11) and infrared connectivity, two SD/MMC expansion slots, a rechargeable battery and a USB HotSync cable. Graffiti can also be used directly on the screen and a lot of bonus software is included. There is also a cheaper Dana (Original) version that excludes the Wi-Fi connectivity and has less memory.