If it doesn't sync now, or used to & doesn't anymore (ie: upgrade to 10.5) then you along with countless others are S.O.L. . Apple appears to only want to cater to iPhone never mind all the Jack we spend on Laptops ,Cinema displays, Ipods etc.. It's just the way it is .
DO NOT expect anyone at Verizon or Alltel or any other network to be sympathetic or even know what iSync even is.
As far as Motorola is concerned this text is right from there website :
"Question
I would like to connect my Motorola phone to an Apple Macintosh computer. Is this possible?
Answer
At this time Motorola does not support software that is Macintosh compatible and our current software is not compatible with Apple/Macintosh devices. Please note that iSync has not been tested by Motorola, and this software would need to be supported by Apple/Mac. If you are interested in an USB cable for your Motorola phone, please visit our online store.
Applicable Products: 120 (c), 120e, 120t, A008, A009, A1000, A388, A630, A732, A760, A760i, A768i , A780, A830, A835, A840, A845, A910, A925, C113, C115, C116, C117, C139, C1 39, . . View all
C141, C151, C155, C156, C168i, C180, C261, C290, C330 Series, C333, C341, C3 43, C350, C370, C380, C390, C398, C450, C650, C975, D1000, D160, D368, D520, DPC650, E1000, E1070, E310, E398, E550, E680i, E770, E770v, E815, E816, i10 00, i1000 PLUS, i105, i2000, i2000, i2000 PLUS, i205, i215, i233, i233, i265 , i275, i280, i285, i285, i290, i305, i30SX, i30SX, i315, i315, i325, i325, i325is, i335, i355, i35S, i365, i365is, i370, i370, i388, i388, i390, i390, i415, i415, i425, i450, i450, i455, i470, i470, i500, i500, i50SX, i50SX, i5 30, i550, i55SR, i560, i570, i580, i58SR, i600, i605, i60C, i615, i670, i700 , i730, i733, i736, i740, i760, i80S, i830, i833, i836, i850, i855, i857, i8 5S, i860, i870, i875, i876, i877, i880, i885, i88S, i90C, i920, i930, i95CL, ic402, ic502, ic602, ic902, L2, L2000, L2000i, L6 i-mode, L6i, L7082, L7089 , L7089 LSERIES L2000, L708i, LSeries+, M100, M1000, M370, M800, M800 Bag Ph one, M900, M900 Bag Phone, MOTO A810, MOTO Q, MOTO Q 9m, MOTO Q8, MOTO Q9h G lobal, MOTO Q™ 9c, MOTO U9, MOTO VE75, MOTO Z6c, MOTO Z6w, MOTO Z8, MOTO Z 9, MOTOACTV V750, MOTOACTV V950, MOTOFONE F3, MOTOFONE F3c, MOTOKRZR K1, MOT OKRZR K1m, MOTOKRZR K3, MOTOMING A1200, MOTOMING A1600, MOTOPEBL, MOTORAZR M axx Ve, MOTORAZR V3, MOTORAZR V3a, MOTORAZR V3c, MOTORAZR V3i, MOTORAZR V3i DG, MOTORAZR V3im, MOTORAZR V3m, MOTORAZR V3s, MOTORAZR V3t, MOTORAZR V3x, M OTORAZR V3xx, MOTORAZR2 V8, MOTORAZR2 V9, MOTORAZR2 V9m, MOTORAZRTM VE20, MO TORIZR Z3, MOTORIZR Z6tv, MOTOROKR, MOTOROKR E2, MOTOROKR E6, MOTOROKR E8, M OTOROKR U9, MOTOROKR Z6, MOTOROKR Z6m, MOTOSLVR, MOTOSLVR L6, MOTOSLVR L7, M OTOSLVR L72, MOTOSLVR L7c, MOTOSLVR L9, MPX200, MPX220, MS550, MULTITAC, Oth er Connectivity & Data Kits, PEBL U6, R300, R370, R388, R470, R750, RAZR V3b , RAZR V3c - Verizon, RAZR V3c (CDMA), RAZR V3e, RAZR V3m-sprint, RAZR V3m-V erizon, RIZR Z3i , RIZR Z3m , RIZR Z3tv , ROKR E1, ROKR E3, Sidekick Slid e, SLVR L7c - Sprint, SLVR L7c - Verizon, ST7761, T182c, T190, T191, T193, T 250, T260, T280, T280i, T300p, T720, T720i, T721, T722i, T730c, T731, V100, V101, V120c, V170, V171, V173, V176, V177, V180, V181, V186, V188, V190, V19 5, V197, V200, V220, V2288, V235, V260, V262, V265, V266, V276, V300, V305, V323, V323i, V325, V325i, V330, V360, V360i, V361, V365, V400, V400p, V50, V 500/525, V505, V525, V535, V540, V545, V547, V550, V551, V555, V557, V557p, V560, V60, V600, V600i, V60g, V60i, V60p, V60s, V60t, V60x, V620, V635, V65p , V66, V66i, V70, V710, V710, V750, V80, V810, V8261, V975, V980, VU30, W156 , W175g , W177, W210, W220, W260g, W315, W355, W360, W370, W375, W377, W385, W388, W395, W490, W510, W755, Z1, . . "