The end of the line is almost here for the Sony CLIÉ. Following the announcement this summer that Sony was exiting the US PDA market, I just received this message from the CLIÉ Handheld Developer Support website: Sony Electronics Inc. hereby announces pursuant to the CLIE(R) Handheld Development Membership Agreement that the CLIE Handheld Developer Website and all related services shall terminate effective December 31, 2004. After this date, the CLIE Handheld Developer Website, Developer Tools, and related Services will no longer be available for use/download, and Sony shall provide no further support. Sony would like to thank to great…