Lost internal storage I am using a spice Mi 502 android phone with 4.0.4 ICS. It has a internal storage of 141 MB but 120 MBs is utilized by preinstalled apps and only 21MB free space is available.

I have rooted my device and deleted some unwanted preinstalled apps from my phone using RootAppDelet app. Now, the space utilized by preinstalled apps is 100 MB and the available free space is still showing 21 MB. I wonder where did the 20MB space go?

I am not a pro androider and have learnt only through helpful forums like these.

Please help me get my lost space back.
With this little internal storage maybe it would be better to move /data to your sd-card.
You can accomplish this with a second partition, which is formatted with ext2, ext3 or ext4 file system and a int2ext-script (source), if your ROM is compatible.