From Slashdot:
An anonymous reader writes "A high-end Linux-based Sharp Zaurus PDA thought to be discontinued in the US is actually available from two sources. The SL-6000L is available from stock from 10East, a seller of vertical market systems for the railroad industry which has established a direct manufacturing relationship with Sharp Japan, it says. The Wi-Fi equipped SL-6000L is also available in single quantities from SDG Systems, which, incidentally, is porting Linux to several PDAs that normally run Windows, including the super-rugged TDS Recon."