[iLawCDN]

From what I can tell, new OS's, especially a while new version of 5.0 will bring new devices. Depending on the release date, its hard to say what devices can run it.

Look at 4.5 for example. My curve came with 4.2, the upgrade to 4.5 made it lag. I assume that is due to lack of resources (be it processor or whatever). Older generations (i.e. two generations ago, 7xxx series) can't even run 4.5.

So I can only assume that if there is anything new that comes out between now and 5.0 (4.8 or 4.9, or new devices), the current devices won't be able to run it; that includes the Curve (Javelin), Storm and the Bold.