How about making recent topic block?

Yep, it's there!

Suggestion now that the feature was added:

Would it be possible to increase the maximum amount of recent topics we can display to something higher than 23? I would like to create a special page on my forum where you would be able to see something like the latest 100-300 active topics in order, useful for members who haven't visited the forums in a while, but don't have time to check the "new posts since last visit" list entirely when logging in (which clears the next time you restart your browser).

That doesn't awnser my question.

I simply used this mod:

http://custom.simplemachines.org/mods/index.php?mod=331

And created an empty page called activity. Basically to access it, you put ?action=activity at the end of the URL after index.php.

Then you create a recent topic EZBlock, then in visible options, you add a custom action called "activity", same as the custom page created with the other mod. Then you edit the EZBlock to only show on that page.

Note: this trick doesn't work with EZBlocks custom pages feature. The EZBlocks will simply not show up in them.