ðɪs dˌʌbəljˌuːdˌʌbəljˌuːdˌiːsˈiː bˈɪld lˈɑːntʃt ˌɔn bˈoʊθ mˈæk ˌoʊˈɛs ˈɛks vˈiː tˈɛn.fˈoːɹ ænd ðə dˌʌbəljˌuːdˌʌbəljˌuːdˌiːsˈiː bˈɪld ʌv mˈæk ˌoʊˈɛs ˈɛks tˈɛn.fˈaɪv"lˈɛpɚd", bˌʌt wʌz ʌnjˈuːzəbəl ˌɔn tˈɛn.fˈoːɹ kɹˈæʃᵻz sˈuːn ˈæftɚ stˈɑːɹɾʌp.
This WWDC build launched on both Mac OS X v10.4 and the WWDC build of Mac OS X 10.5 ("Leopard"), but was unusable on 10.4 (crashes soon after startup).