I failed to find much information about it, but SpatiaLite, the geospatial version of SQLite, reached version 3.0 about a month ago. Anyone knows where to find release notes? I find also funny that on SpatiaLite homepage, it is clearly stated that spatial is not special! :-) Yes, I'll share a followup to my previous entry on the topic (thanks for your feedback!).
On the SpatiaLite topic, here's a blog entry named Spatialite and Excel on talking terms: "The recent stable version of Spatialite, 3.0, supports linking to and importing Excel spreadsheet tables. Read on to see how it’s done. The developers of spatialite have added a driver for *.xls files (thru the FreeXL library ). You can either link to, or import a single sheet from an Excel file [...]"