I have my HTCExplorer(pico) hosting a 16GB SDcard of 12GB+fat32+primary and 2GB+ext3+primary+sd-ext label partitions.
I have installed CM11 RC1 ROm on my phone, as described in the first page of the ROM development thread. But still without any additional apps installed I'm left with 25MB internal memory only.
What I did .....
1. copied the ROM and GAPPS to my SDCard from my laptop
2. Reboot into recovery
3. wipe all data/factory reset
4. mount sd-ext partition
5. installed the ROM
6. reboot the phone
7. after the first reboot, again rebooted to recovery
8. now this time installed GAPPs
9. again reboot the phone
Now, only 25MB left in my phones internal memory. Seems like the int2ext script is not working which is included in the ROM (I believe).