A reader for big HTML files and/or zipped HTML bundles? I'd like to read a moderately big HTML file - about 3M. Another option is to have it split in several interlinked HTMLs.

Cool reader is the closest. Though it:


either crashes/gets out of memory, I don't know, on certain pages of 3M HTML file (3M not that much, actually, for a 50M free memory).
or doesn't support links to files lying in the same directory/zip file (in a form: a href="file.html#anchor")


Are there any other options around?
You could try using the default Android browser.  Open the browser, in the address bar enter: file://sdcard/file.html (replace the part after sdcard/ with whatever path leads to your file).  You can then bookmark the file and open it later in the browser without having to re-type the address.  However, trying to make a "bookmark shortcut" or using the HTC bookmark widget will not work for local files.