The field of 6G mobile communications is rapidly advancing, with a focus on integrating space, air, and ground networks to achieve high-speed transmission and expanded coverage. A key supporting technology for 6G is the Space-Air-Ground Integrated Network (SAGIN), which is being developed to address the challenges of blockage and interference in millimeter-wave multi-user MIMO systems. Researchers are also exploring the use of reconfigurable intelligent surfaces (RIS) to enhance the performance of wireless networks, including the development of novel architectures and algorithms for RIS-assisted full-duplex terahertz systems and joint beamforming design and resource allocation. Additionally, there is a growing interest in the use of RIS for over-the-air computation, such as implementing convolutional neural networks (CNNs) via analog computation. The development of green wireless network scaling strategies is also crucial, with researchers investigating the deployment of multi-BS and multi-RIS systems to maximize energy efficiency. Noteworthy papers in this area include: Joint Spatial Registration and Resource Allocation for Transmissive RIS Enabled Cooperative ISCC Networks, which proposes a novel transmissive RIS transceiver-driven cooperative integrated sensing, computing, and communication network. AirCNN via Reconfigurable Intelligent Surfaces: Architecture Design and Implementation, which introduces a novel paradigm for implementing CNNs via over-the-air analog computation. Green Wireless Network Scaling for Joint Deployment: Multi-BSs or Multi-RISs?, which establishes fundamental scaling laws for the Integrated Relative Energy Efficiency metric under joint multi-BS and multi-RIS deployment.