The thing that's always killed me about the ODF quest is that while "they" are trying to find a common method of rendering formatted/rich text on any platform ... (which is a great idea...) ... nobody has even managed to even pull that off with a plain ASKII text document. Basically because there appears to be about 5 different methods of defining a line break. 
I do agree with Adobe's .PDF as the best yet attempt at a cross platform document (considering it really does actually just work), but damn that thing is turning into a cagey pita with all the other (Swiss-Army-Knife style) crap they keep trying to squeeze into it.
-Stoic Joker
Yeah, and these bloat and speed issues is my main frustration with just about every mainstream program/OS that i run into. When you step back and consider the power that we have available now in our computer (CPU, RAM, GPU, etc.) it's very surprising that programs are not zip-zip fast. I'm not saying anything is slow on my new computer, they are not slow. But it definitely could be faster.
Why is Acrobat such an enormous application? It's all bloat. Don't come to me with the features that 0.001% of the people use. I bet the program could be 20 MB and nobody would notice. And a hell of a lot faster. It should open and close almost before you click the button.
Same with Office. Let's talk Outlook. All it does is email and calendar stuff. So slow. There's no need.
Same with any large mainstream software. Nero, Mcafee, Norton, Photoshop. It just doesn't seem like we are able to enjoy the processing power we have today. The more power we get, the more bloated programs get. And if the OS is bloated or inefficient, then we're instantly off to a bad start.