Short answer, No. It depends on what you mean by this. Most mobile devices have fixed RAM & ROM capacity. You can, however get more internal storage space by re-flashing to a cooked (or hacked) ROM. That is, a custom ROM made for this device which may contain OS tweaks, software modifications, removal of unnecessary software to increase available internal storage, addition of other third party software and other misc tweaks and edits. Doing this may, or may not void your PDA/mobile device warranty, so do so at your own risk. As for RAM, there is no way to "ADD" more memory like one could on a PC or MAC. You can however, free up wasted memory by closing unnecessary applications (not being used), or by running a memory management program. This can free up RAM that is not currently in use but is floating around in leaked memory, so it isn't registered as "FREE".
PDA store apllication programs and data in ROM
only rom
ram is random access memory and ROM is read only memory
utility program
ROM
RAM is random access memory and ROM is read-only memory.
RAM - Random Access Memory ROM - Read Only Memory
Ram
rom
The BIOS is stored on ROM.
ROM isn't erased when you turn the power off, whereas RAM is.
RAM is a volatile Memory. But ROM is not volatile.