, , , , . , . Play 1.x , , - , - 2.x +
, / , , "" . .
On the other hand, I would definitely recommend starting a new project with version 2.x, staying at level 1.x, because you will wake up one day with an application created on an unsupported version.
About modules: keep in mind that modules are created by the community. I would not put my choice on the presence of modules between the versions of Play 1 and 2, since these are just fragments of code, and many of them can simply be written in a short time. Finally, as a development platform, Play - modules are simply beautiful shortcuts, not absolutely required base for any new application.
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