If you want to extract the raw jpegs from the Streetview service this can be done fairly easily. The technique is discussed here:
http://jamiethompson.co.uk/web/2010/05/15/google-streetview-static-api/
XML metadata for a panorama can be gained from the following request
http://cbk0.google.com/cbk?output=xml&ll=[LAT,LNG]
which gets you something like this:
<panorama>
<data_properties image_width="13312" image_height="6656" tile_width="512" tile_height="512" pano_id="sLaiF6Jex7mJmNol7tdOoA" num_zoom_levels="3" lat="51.495090" lng="-0.146971" original_lat="51.495098" original_lng="-0.147000">
<copyright>© 2010 Google</copyright>
<text>Eccleston Pl</text>
<region>London, England</region>
<country>United Kingdom</country>
<data_flag>1</data_flag>
</data_properties>
<projection_properties projection_type="spherical" pano_yaw_deg="201.78" tilt_yaw_deg="92.06" tilt_pitch_deg="1.75"/>
<annotation_properties>
<link yaw_deg="204.7" pano_id="CeutxcyB2V74lfN_fJwRww" road_argb="0x80ffffff">
<link_text>Eccleston Pl</link_text>
</link>
<link yaw_deg="24.7" pano_id="t_mnKSugTLrQTEnJplXQ3A" road_argb="0x80ffffff">
<link_text>Eccleston Pl</link_text>
</link>
</annotation_properties>
The pano_ids can then be used to get thumbnails or high resolution tiles from the streetview API
Thumbnail
http://cbk0.google.com/cbk?output=thumbnail&w=416&h=208&panoid=sLaiF6Jex7mJmNol7tdOoA
Tile
http://cbk0.google.com/cbk?output=tile&panoid=sLaiF6Jex7mJmNol7tdOoA&zoom=4&x=0&y=3