FilesLite application...
I've been using an application to read my pdfs. There is a lite free version available on the app. store called "FilesLite". With it you can connect to your iphone/touch wirelessly and drag and drop the files. Then open them in the application on your phone/ipod...
The program is amazing, allows landscape view, page turning, etc. And on the full version (currently 6.99) you can jump to specific pages and add bookmarks, etc. But there seems to be an apple dictated issue with larger pdf files...it crashes with my 25mb files!!! Which truly sucks!!