certificate validity

[tedalde2]

It seems I can use ADT to self-sign a certificate "...whose validity period ends after 22 October 2033...", as required by Android market. What are the implications of self-signing an app and posting it to the market? What warnings does the user see? Must I always use that certificate to update the app (ex: I'd change certificates to the "real" one once obtained)? Thanks

[tedalde2]

So it seems impossible to "buy" a certificate that lasts 25 years. Self-signing it is, then!