Doomed to never updating iphone

hi
1 of rare people still has 3g.

right believe if ever update phone become intolerably slow?

doomed phone becoming less , less useable apps require updates?

 

not sure version of ios you're running concensus upgrading ios4 cause significant performance issues. not sure if phone can run ios5 either.

i'd wait out until feel need upgrade newer phone.

 

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