The Xperia X10′s system firmware has been updated from R1FA016 to R1FB001, and has also had update for the baseband to 1.0.21. There have been reports of dramatically improved system performance, especially with both TimeScape and MediaScape. Run the Sony Ericsson Update Service to update your X10′s firmware, and you’re done. However, currently the updates seem to only be available on the American and Nordic models, but will inevitably become available for all models within the coming days. Additionally, expect to see another update toward the end of the month specifically designed to solve the X10 battery issues.