Apple has released a new iPod nano in September every year for the last five years, and a new iPod touch in September every year for the last three years.
Predicting new iPods before Christmas seems like a safe bet.
An iPad Nano may be quite unlikely in 2010, but the possibility is real, according to a recent Digitimes rumor [1]:
The sources noted that Apple has recently placed new iPad orders to Taiwan-based component makers for the fourth quarter of 2010 and the first quarter of 2011 with 9.7-inch, 5.6-inch and 7-inch models all included.
Admittedly, the same report notes that supply of OLED screens is limited, and may not ease until the second half of 2011.