Archos Internet Media Tablet

I was online looking for a used or refurbished notebook tablet (an IBM thinkpad x41 tablet) yesterday planning to use it as a GPS but instead I found the Archos 5 60 GB Internet Media Tablet at Amazon.com. It not going to meet my requirements for a PC GPS but its features are interesting.
- 60 GB capacity for up to 80 movies, 600,000 photos, or 30,000 songs
- Up to 12 hours music and 4 hours video playback time on a single charge
- 4.8-inch TFT LCD touchscreen; 800×480 pixel resolution; 16 million colors
- Video support: MPEG-4, WMV, and M-JPEG; Audio support: MP3, WMA, Protected WMA, WMA pro 5.1, WAV; plug-ins available for further video and audio format support
Now, Im in a dilemma if I still need a used PC or get this baby?