What is the best cell phone that can be used on the Sprint network?  I
am most interested in a phone that is small, light, and has long
battery life.

Brandbuilder, 

Sprint has a wide selection of phones:
[ http://www1.sprintpcs.com/explore/PhonesAccessories/Phones.jsp ]

Sprint recently added the $299.99 dual-band Sanyo SCP 6200, which is a
mere 2.65 ounces, measures 5" x 1.5" x less than 1/2" thick, and has
3.5 hours of talk time or 285 hours of stand-by time (digital mode)
and 70 minutes of talk time or 15 hours of stand-by in analog:

[ http://www1.sprintpcs.com/explore/PhonesAccessories/PhoneDetails.jsp?selectSkuId=sanyoscp6200&FOLDER%3C%3Efolder_id=2421&CURRENT_USER%3C%3EATR_SCID=ECOMM&CURRENT_USER%3C%3EATR_PCode=None&CURRENT_USER%3C%3EATR_cartState=group&bmUID=1021062239746&WebLogicSession=PNwsXwFREci5xeYbmHVkPNzE9osYE5c4CLJucTirSd4lPpyMrYcDtYG5rWPm0GI2I1VDn8KIotE3|-3095068998646050754/542450408/5/7001/7001/7001/7001/-1
]

CNET's short review gives it 8/10:
[ http://www.cnet.com/wireless/0-1923403-8-9858603-1.html?tag=prmo ]

For its single-band relative, the $199.99 Sanyo SCP-6000, at only 2.3
oz. and with 2.25 hours of talk and 160 hours of stand-by:

[ http://www1.sprintpcs.com/explore/PhonesAccessories/PhoneDetails.jsp?selectSkuId=sanyoscp6000&PhoneName=showcaseB&Link=Link1&FOLDER%3C%3Efolder_id=2421&CURRENT_USER%3C%3EATR_SCID=ECOMM&CURRENT_USER%3C%3EATR_PCode=None&CURRENT_USER%3C%3EATR_cartState=group&bmUID=1021062239759&WebLogicSession=PNwsXwFREci5xeYbmHVkPNzE9osYE5c4CLJucTirSd4lPpyMrYcDtYG5rWPm0GI2I1VDn8KIotE3|-3095068998646050754/54245040
/5/7001/7001/7001/7001/-1 ]

ZDNet's review of the SCP-6000 (7.2/10):
[ http://www.zdnet.com/supercenter/stories/review/0,12070,522233,00.html
]


If fold-up is more your style, you can check out the the $149.99
Samsung SPH-A400 with 3.6 hours of talk and 7 days of stand-by
(digital)  and 60 minutes/15 hours in analog. This phone is currently
being offered with a $100 rebate:

 [ http://www1.sprintpcs.com/explore/PhonesAccessories/PhoneDetails.jsp?selectSkuId=sanyoscp6000&PhoneName=showcaseB&Link=Link1&FOLDER%3C%3Efolder_id=2421&CURRENT_USER%3C%3EATR_SCID=ECOMM&CURRENT_USER%3C%3EATR_PCode=None&CURRENT_USER%3C%3EATR_cartState=group&bmUID=1021062239759&WebLogicSession=PNwsXwFREci5xeYbmHVkPNzE9osYE5c4CLJucTirSd4lPpyMrYcDtYG5rWPm0GI2I1VDn8KIotE3|-3095068998646050754/5424504
8/5/7001/7001/7001/7001/-1 ]

CNET's review of the A400 (7/10)
[ http://www.cnet.com/wireless/0-1923403-8-8952882-1.html ]


Or you can choose the $299.99 Sanyo SCP-5150, which is currently being
offered with a $100 rebate:
[ http://www1.sprintpcs.com/explore/PhonesAccessories/PhoneDetails.jsp?selectSkuId=sanyoscp5150&FOLDER%3C%3Efolder_id=2421&CURRENT_USER%3C%3EATR_SCID=ECOMM&CURRENT_USER%3C%3EATR_PCode=None&CURRENT_USER%3C%3EATR_cartState=group&bmUID=1021062239733&WebLogicSession=PNwsXwFREci5xeYbmHVkPNzE9osYE5c4CLJucTirSd4lPpyMrYcDtYG5rWPm0GI2I1VDn8KIotE3|-3095068998646050754/542450408/5/7001/7001/7001/7001/-1
]

ZDNet's review of the SCP-5150 (7.4/10):
[ http://www.zdnet.com/supercenter/stories/review/0,12070,552347,00.html
]

These phones fit your criteria. Your price range may dictate which is
most attractive.

You can also use CNETs phone finder to find Sprint phones and rebates
for your area:
[ http://partner.getconnected.com/cnet/V_Catalog/WirelessPhones/wirelessphones_view.asp?Fulfiller=Sprint
]

Hope this helps!

mit