So far, iBooks looks pretty nice but won't replace Stanza on my iPhone.
I definately need some kind of series-management; Stanza lets me at least view book infos and I can then see Calibre's Series-info in there as well as an excerpt. iBooks just lets me open books. Too limited, Go Stanza, Go Calibre
Hmmm ... Kovid, don't you feel an itch in your fingertips to program a Calibre version for iPhone/iPad?