Since writing my initial coverage of ARMH on St. Pattys Day I've taken to summarizing my bullishness on ARM Holdings in the following way: they are the purest play on mobile around.  I say this for two reasons:

1. They are in, depending on which estimate you read, up to 98% of all mobile devices.  (Of these many are small RISC chips, but in many cases the core processor is ARM.)  The entire iPhone/iPad line uses them, but at the same time they are in many Android devices and there has even been talk that Google may standardize Android on ARM architecture.

2. They don't make any chips themselves, they just license their intellectual property out and let others make the chips.  Which means no supply chain, no component pricing, distribution... just selling their designs for a tidy profit.

Lately the stock itself has done very well: whenever it dips, buyers step in.  Today I'm one of those, buying some April calls with 30 strike for .90 each (.85 as of right now).  29 calls are also a good way to buy in, currently selling for 1.25.  

Everyone wants to cash in on mobile; to me, making money off ARMH is child's play.