It looks like I've found a place to host the script which generates OVI Maps landmarks for London cycle hire. Before, every free hosting I tried turned out to have some nasty limitations (like advertisement snippets corrupting the output) or blocked the script in time due to its need to access other site page to scrape the data from. But this one looks okay (so far).
So, fingers crossed, no more repeating updates. When you need to update the docking stations locations in your Nokia phone, just follow this link and download a fresh LDB file (further instructions stay the same).