Mobile security should but not only include the following segments or aspects.

1. Mobile secure content and threat management (MSCTM)
MSCTM defends virus, spyware, spam, hackers, intrusions, and unauthorized use. This segments can be broken into three subcategories.
1a. Mobile threat management for antimalware, antispyware, firewalls
1b. Mobile IPC for file/disk encryption, data loss prevention
1c. Mobile VPN for mobile data transfer network security

2. Mobile security and vulnerability management (MSVM)
MSVM provides device wipe, lock, patching, password, policies and compliance.

3. Mobile identity and access management (MIAM)
MIAM offers authentication and authorization technologies like certificates, PKI, SSL. It is extremely important for users to access sensitive datas or to do ecommerce transactions.

4. GPS or location based awareness
This can be a complement for industries such as retail store, healthcare and government where users are mostly granted limited access in a certain range of areas.

Lastly the key thing is to always consider mobile security solutions before you are deploying your first enterprise mobile application, not matter whether it is Mobile CRM, Mobile BI, or even Mobile Email access. If you employ a BYOD roadmap, keep in mind the users' privacy.

If you have a large deployment, do engage with telco operators. Not only can they offer data plans, also they can provide enhanced features on network perspective such as APN etc. If your deployment is small, find some hosting or leasing solution providers to ensure cost effectiveness.