Sony's Andrew House has been chatting to UK site [MCV] about PlayStation Suite, in which he mentioned several useful snippets.
Firstly, as expected, the memory cards for NGP are currently 2Gb or 4Gb big, but he hints that future cards will be larger for even more gaming on the go. Sony dropped the physical drive as a power-saving trick.
PlayStation Suite is designed to attract both the core audience (with both nostalgic and new gaming challenges) and the general audience who will have heard many of the names of legendary games but wonder what it was all about.
Also, PlayStation Suite could come out on devices other than Android, (iOS has to be the favourite) but Sony is concentrating on that format for now.