A portion of a TechTree interview with Opera CEO Jon S. von Tetzchner…
TT: The Nintendo DSi has Opera embedded. The DS Lite had Opera as a separate cart which came with additional RAM. Does that mean that the DSi has more RAM than the DS Lite?
JT: Yes, the DSi has more RAM than the DS Lite. In addition, with integrated Opera coming with the DSi, it will use RAM more efficiently.