FBA won't tell you when you're going low resources. I suggest you to download an external memory track usage program and keep your FBA program as light as possibile (imho keeping your memory usage always lower than 6-7 mb is the best thing and should be enough for all devices)
Boiled Sweets wrote:
3. Do TTF fonts use LOADS more memory? Are GFX fonts better?
TTF fonts use more memory than GFX fonts, because the TTF extension. (that's why i always prefer gfx fonts)
Boiled Sweets wrote:
4. What other memory saving techniques can I use?
Actually you should remember to load/unload resources just when needed.
Boiled Sweets wrote:
5. How much memory does FBA.EXE use? Can it be limited?
FBA showing a blackscreen uses very few memory (LUA extension + some other memory required by startup environment).
Boiled Sweets wrote:
6. What is the maximum grid size I can create? A 2000*2000 just causes FBA to hang on the device!
Remember: lower is better

It's better to split your worlds and load them when needed.