What can a netbook do better than an ipad? Media support.
IPad Video: H.264 video up to 720p, 30 frames per second, Main Profile level 3.1 with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats; MPEG-4 video, up to 2.5 Mbps, 640 by 480 pixels, 30 frames per second, Simple Profile with AAC-LC audio up to 160 Kbps, 48kHz, stereo audio in .m4v, .mp4, and .mov file formats
Windows Netbooks (in general) can run iTunes, and play any of the above. They also can play AVI, WMV, VOB, and any other video format there is a downloadable codec for.
IPad Music: AAC (16 to 320 Kbps), Protected AAC (from iTunes Store), MP3 (16 to 320 Kbps), MP3 VBR, Audible (formats 2, 3, and 4), Apple Lossless, AIFF, and WAV
Windows Netbooks (in general) can run iTunes and play any of the above. They also can play WMA, FLAC, OGG, etc.. Any audio format there is a downloadable codec for.
Simply put you can download software, drivers, codecs, etc, to add to a netbook's capabilities. Although you'll have an App store for the iPad, you won't find additional codec there to add to the iPad. I've searched the app store for codecs to add to my Touch with no luck.