you can use app2sd to moveai your installed apps on sd card. all you need is root + busybox (available on market). Use SuperOneClick for rooting and busybox installer for proper busybox installation. Now The tricky one, Apps2SD, i recommend you to use DarkTremor A2SD, here's the link for complete guide:

[SCRIPT] Enabling Darktremor a2sd on Samsung s5830 Galaxy ACE - xda-developers

 

humm... have you already root your phone? i'll give you the steps:

1. Download Darktremor A2SD from XDA Developers forum.

2. Download SuperOneClick: Follow the install instructions, reboot, then check if you have "SuperUser (SU)" app in drawer. If SU is available, your phone successfully rooted.

3. Download "BusyBox Installer" from market: Install, Open app, if request superuser permission appears, press "ALLOW". then choose busybox version you like, but i suggest you to use stable one like v1.8, newest is 1.9.1 beta. install & reboot.

4. Download "Titanium Backup (TB)" from market: Install, press "ALLOW" for SuperUser permission. now check on TB main screen, look at Overview tab, Root access said "OK" (BusyBox 1. bla bla bla..) then you're ready for next step.

5. Now backup your apps and data from your SD to PC.

6. Download "Mini Tool Partition Wizard" from www.partitionwizard.co, install then insert your SD card via card reader, don't use the phone.:

- Delete partition
- Create FAT32 - PRIMARY, size depends. for 4GB card you can reserve up to 3GB for data.
- Create EXT2 (not ext3 or 4) - PRIMARY, size 512MB for best, don't max out available space. you still need it for swap.
- Create LinuxSwap - PRIMARY, size: use remaining available space.
- check your settings if all ok then click APPLY.

7. Now copy Darktremor A2SD ZIP file to repartitioned SD card. rename it to "update.zip" also "a2sd_enabler.sh" from xda developer forum.

8. Now put it back to the phone, power on. then download ClockworkMod ROM MANAGER, backup your current ROM. if failed don't worry you can download the originaal from samdroid site.

9. Open Clockworkmod ROM MANAGER, choose Boot Recovery, if failed. Turn off your phone. Press HOME + POWER button to boot into recovery menu. choose wipe data/cache then FLASH update.zip. it'll reboot after finished.

10. Now, download "Terminal Emulator" from market. open it, you'll find the screen like MS-DOS, type "su" for superuser permission.

11. type "a2sd check" to check if a2sd properly installed. don't worry, darktremor is very kind to write down all the information for us. read carefully at each line written.

12. now type in the following commands (try copy-paste each line then hit enter):

To double check everything, reboot your phone and open terminal emulator again, then run the following command, and find a line similar to the highlighted line in the output below:

Output (or use titanium backup to check whether "sdcard (a2sd): XXXMB XXXMB Free" is enabled)

now you're good to go

still confused? try to contact those experts from xda developers. i just followed the steps from majadev

one more thing, use minimal class 4^ sd card. type *#*#7780#*#* after successfully applied a2sd and reset factory setting then install your apps one by one from beginning.

 

i'm confused, which memory are we talking about? from what i can guess it's both extending internal storage and ram since you create a swap partion as well as an ext2, or am i wrong? i'm just asking because i have no problem with internal storage but i'm getting quite a few force closes... also if this were true, would the phone slow down significantly when using the swap partition?

 

you're welcome

by default swap/cache file handled by DALVIK JIT included with A2SD placed in internal nand storage but you can always move the cache to sdcard to free more internal storage. it's true ext2 cannot activate swap, i suggest you to follow the step (1. FAT 2. EXT2 3.LINUX SWAP), useful for upcoming custom rom with ext3 and ext4 so you don't have to repartitioned your sd card again. use A2SDGui (available in market) to convert to ext3 for supported ROM.

if you experienced FCs, try to move the app back to internal storage, for example widgets, task killer or any 'always on' app should stay in internal storage

about slowdown, swap should handy for Galaxy Ace because it has small amout of RAM, but don't reserve swap too much, 64MB are good. also use minimal class 4 sdcard, now i'm using patriot 8GB class 10 msdhc for my Optimus Black and I didn't experience any slowdown.

 

cant u do it without rooting the phone???

 

yes it works... connect your phone on step 2 using USB debugging. more info about super one click, please visit xda developers forum

so you have connection on pc, just download those files i mentioned above (a2sd, busybox, titanium backup, terminal emulator) and manually copy to your phone via USB mode.

nope, swap file/partition just like PC swap method. it won't physically extend but virtually extended for processing. RAM info in system will remain 278MB.

yeap