I had the phone for a month now having never had an Android phone before. I had read many posts about internal memory and just thought that I would not let it get low enough to be a problem until it created one! I have downloaded various apps with Google map/navigation and Facebook taking up the largest sizes. Unfortunately, these cannot be moved to the SD card (the maps on the N95 were solely on it and took up about 190Mb!) like the apps can and have been. For the last week or so, the memory has dropped to around 18Mb by clearing caches etc and was the case when I went to bed after a spot of "cleaning". I was woken at 2pm by a notification and turned the phone down but when I woke up the phone was stuck in sleep mode. I removed the battery and switched back on to discover the phone only had 0.98Mb left! Nothing had updated as these are set to be done manually and it was only a handful of tiny emails that had come down. So I have a few questions: - Where did 17Mb of internal memory go overnight? Having never been anywhere near that low I cant get anywhere close to back to where it was - No apps have been downloaded for nearly two weeks so if I have to start deleting them, why? And will this need to be done regularly until there are none left? - What does "clear data" do in the manage apps section where the cache is cleared from? I haven't done these and are they all safe to clear or are there some that should be left? Can games data be stored on the SD? What I am struggling to understand is that I have totalled EVERYTHING I have downloaded to be 70Mb according to the downloaded list and should be manageable. My contacts size is 7.5Mb so not too bad so anything I else I should look for? I will investigate the SDK option on another thread but need to find out why I lost this lot first.