TurboTax Online worked out marvelously once again for me this year, this time using Gentoo linux AMD64 + Firefox 2.0 + KGhostView (for PDF’s) + Gentoo’s nsplugin wrapper for 64-bit-browser flash support + my bank website (which uses PDF’s and flash(?!)) + OpenOffice Calc (for a worksheet to crunch charity numbers, medical expenses, etc.). The Turbotax “compatibility check” stated that you need Windows or Mac OS X, but linux took me from start to filed with zero problems, including always-available help and access to a great community-driven FAQ system that made even my fairly complex tax return as simple and clear as possible. Whee!