Hello Reidler,
Elecont Weather is a good program, direct and complete information with good graphic interface, and frequently updated data provider climate "Intellicast.com" (
http://www.intellicast.com/), which is very good. The database has over 61,000 cities around the world. So you do not occupy much space program, you can remove the skins (themes) that do not use (I use only the "Classic"). You have to leave the skins/themes you're going to use, but you should also keep the files beginning with "hb" (are 4 files) along with the skins/themes that you want, others you can delete them and save enough memory space.
It is not good to have a database of the pim.vol, mine is 1,9mb and I have lots of data. PIMbackup is the best program that there is to do a backup/restore of the pim.vol, I use it for many years, and is perfect in everything.
I also use CleanTemp. I can recommend the best tool available for windows mobile: SKTools (
http://www.s-k-tools.com/index.html?sktools/m_feat.html). It has more than 60 tools of adjustment and cleaning for Windows Mobile, but some of them you have to handle with care, knowing well what you're doing. SKTools also have possibility to clean up data from the database of pim.vol, edit and delete data that does not want to have to be obsolete or unnecessary. You can come in very handy SKTools (not SKTools Lite, but SKTools).
If you need more information tell me.
Best regards,