Apple posted updates on Tuesday for Keynote (4.0.2), Pages (3.0.2) and Numbers (1.0.2). The Keynote update addresses performance issues while playing or exporting presentations while little was said about the Pages and Numbers updates. Sizes below are for Intel Macs.
The Numbers 1.0.2 update is 26.2 MB.
The Pages 3.0.2 update is 27.8 MB.
The Keynote 4.0.2 update is 32 MB.
The updates are also available in Mac OS X, System Preferences -> Software Update.