OO is a committee designed bloatware mammoth.<p>Office was created in low level coding, with the minimum possible dependencies (e.g excel reinvents the wheel so it does not include so many external libs). OO is a sluggish and high level clone with minimum attention for detail. Consumes too much memory and too much processor, like Netscape Navigator became, but hopefully(thanks to the license) it could be transformed into firefox.<p>It will be very expensive to replicate the hard work that went into Office, only starting from scratch you could do it like Koffice, abiword or gnumeric did.<p>You can't outperform Office in their strengths, but you can outperform it on things Microsoft is not an specialist, like multiplatform coding, cloud writing, and new interfaces(multitouch and voice).<p>I don't use windows, and honestly I don't care about Office any more. There are very good alternatives, but not OO.